<s>
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
(	O
initially	O
referred	O
to	O
as	O
Guitar	B-Application
Hero	I-Application
IV	I-Application
or	O
Guitar	B-Application
Hero	I-Application
IV	I-Application
:	O
World	O
Tour	O
)	O
is	O
a	O
music	B-Application
rhythm	O
video	O
game	O
developed	O
by	O
Neversoft	O
and	O
published	O
by	O
Activision	O
.	O
</s>
<s>
It	O
is	O
the	O
fourth	O
main	O
installment	O
in	O
the	O
Guitar	B-Application
Hero	I-Application
series	I-Application
.	O
</s>
<s>
The	O
game	O
was	O
launched	O
in	O
North	O
America	O
in	O
October	O
2008	O
for	O
the	O
PlayStation	B-Device
2	I-Device
,	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
Wii	B-Operating_System
,	O
and	O
Xbox	B-Operating_System
360	I-Operating_System
consoles	O
,	O
and	O
a	O
month	O
later	O
for	O
Europe	O
and	O
Australia	O
.	O
</s>
<s>
A	O
version	O
of	O
World	O
Tour	O
for	O
Microsoft	B-Application
Windows	I-Application
and	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
was	O
later	O
released	O
by	O
Aspyr	O
.	O
</s>
<s>
While	O
the	O
game	O
continues	O
to	O
feature	O
the	O
use	O
of	O
a	O
guitar-shaped	O
controller	O
to	O
simulate	O
the	O
playing	O
of	O
rock	O
music	B-Application
,	O
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
is	O
the	O
first	O
game	O
in	O
the	O
Guitar	B-Application
Hero	I-Application
series	I-Application
to	O
feature	O
drum	O
and	O
microphone	O
controllers	B-Device
for	O
percussion	O
and	O
vocal	O
parts	O
.	O
</s>
<s>
This	O
is	O
in	O
many	O
ways	O
similar	O
to	O
the	O
competing	O
Rock	B-Application
Band	I-Application
series	O
of	O
games	O
.	O
</s>
<s>
The	O
game	O
allows	O
users	O
to	O
create	O
new	O
songs	O
through	O
the	O
"	O
Music	B-Application
Studio	O
"	O
mode	O
,	O
which	O
can	O
then	O
be	O
uploaded	O
and	O
shared	O
through	O
a	O
service	O
known	O
as	O
"	O
GHTunes	B-Application
"	O
.	O
</s>
<s>
World	O
Tour	O
received	O
generally	O
positive	O
reviews	O
,	O
with	O
critics	O
responding	O
positively	O
to	O
the	O
quality	O
of	O
the	O
instrument	O
controllers	B-Device
,	O
the	O
customization	O
abilities	O
,	O
and	O
improvements	O
in	O
the	O
game	O
's	O
difficulty	O
compared	O
with	O
the	O
previous	O
Guitar	B-Application
Hero	I-Application
III	I-Application
:	I-Application
Legends	I-Application
of	I-Application
Rock	I-Application
.	O
</s>
<s>
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
builds	O
on	O
the	O
gameplay	O
from	O
previous	O
Guitar	B-Application
Hero	I-Application
games	O
,	O
in	O
which	O
players	O
attempt	O
to	O
simulate	O
the	O
playing	O
of	O
rock	O
music	B-Application
using	O
special	O
guitar-shaped	O
controllers	B-Device
.	O
</s>
<s>
Similar	O
to	O
Rock	B-Application
Band	I-Application
,	O
the	O
band	O
shares	O
a	O
common	O
score	O
,	O
scoring	O
multiplier	O
and	O
band	O
performance	O
meter	O
while	O
each	O
player	O
has	O
their	O
own	O
performance	O
metric	O
;	O
the	O
band	O
also	O
shares	O
the	O
same	O
"	O
Star	O
Power	O
"	O
meter	O
,	O
though	O
any	O
player	O
may	O
activate	O
it	O
at	O
any	O
time	O
.	O
</s>
<s>
As	O
with	O
previous	O
Guitar	B-Application
Hero	I-Application
titles	O
,	O
the	O
guitar	O
and	O
bass	O
player	O
must	O
hold	O
down	O
the	O
correct	O
fret	O
button(s )	O
on	O
the	O
controller	O
while	O
strumming	O
in	O
time	O
with	O
the	O
notes	O
as	O
they	O
scroll	O
on-screen	O
.	O
</s>
<s>
The	O
vocal	O
track	O
requires	O
the	O
player	O
to	O
match	O
the	O
pitch	O
of	O
the	O
notes	O
in	O
a	O
manner	O
similar	O
to	O
Karaoke	B-Application
Revolution	I-Application
to	O
be	O
successful	O
.	O
</s>
<s>
Star	O
Power	O
's	O
use	O
has	O
been	O
modified	O
over	O
previous	O
Guitar	B-Application
Hero	I-Application
entries	O
in	O
that	O
Star	O
Power	O
can	O
now	O
be	O
accumulated	O
even	O
when	O
Star	O
Power	O
is	O
in	O
use	O
by	O
successfully	O
completing	O
additional	O
Star	O
Power	O
phrases	O
,	O
which	O
extends	O
the	O
Star	O
Power	O
's	O
duration	O
.	O
</s>
<s>
Career	O
mode	O
has	O
been	O
slightly	O
altered	O
from	O
previous	O
Guitar	B-Application
Hero	I-Application
games	O
.	O
</s>
<s>
Two	O
of	O
the	O
lead	O
guitar	O
gigs	O
feature	O
"	O
boss	O
challenges	O
"	O
with	O
Zakk	O
Wylde	O
and	O
Ted	O
Nugent	O
;	O
these	O
boss	O
challenges	O
,	O
featuring	O
original	O
songs	O
by	O
Wylde	O
and	O
Nugent	O
,	O
are	O
different	O
from	O
Guitar	B-Application
Hero	I-Application
III	I-Application
:	O
Legends	O
of	O
Rocks	O
boss	O
battle	O
,	O
removing	O
the	O
focus	O
on	O
attack	O
power-ups	O
and	O
instead	O
featuring	O
a	O
call-and-response	O
mechanic	O
similar	O
to	O
the	O
existing	O
Face-Off	O
mode	O
.	O
</s>
<s>
Existing	O
competitive	O
modes	O
from	O
the	O
series	O
,	O
including	O
the	O
Battle	O
Mode	O
from	O
Guitar	B-Application
Hero	I-Application
III	I-Application
,	O
are	O
also	O
present	O
in	O
the	O
game	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
version	O
of	O
the	O
game	O
features	O
a	O
special	O
"	O
Mii	O
Freestyle	O
"	O
mode	O
that	O
allows	O
players	O
to	O
use	O
their	O
Miis	O
as	O
their	O
characters	O
as	O
they	O
improvise	O
songs	O
via	O
the	O
guitar	O
and	O
drum	O
controllers	B-Device
or	O
using	O
the	B-Operating_System
Wii	I-Operating_System
Remote	O
and	O
Nunchuk	O
.	O
</s>
<s>
Selected	O
characters	O
from	O
previous	O
Guitar	B-Application
Hero	I-Application
games	O
are	O
available	O
as	O
templates	O
for	O
creating	O
a	O
rocker	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
computer	O
-	O
and	O
player-controlled	O
characters	O
,	O
avatars	O
of	O
notable	O
musicians	O
are	O
featured	O
in	O
the	O
game	O
,	O
either	O
with	O
motion	B-Application
capture	I-Application
or	O
the	O
licensing	O
of	O
their	O
image	O
for	O
their	O
character	O
.	O
</s>
<s>
New	O
venues	O
in	O
the	O
game	O
include	O
virtual	O
recreations	O
of	O
real	O
arenas	O
,	O
such	O
as	O
Ozzfest	O
,	O
Amoeba	O
Music	B-Application
,	O
Live	O
Nation	O
's	O
House	O
of	O
Blues	O
,	O
Sunset	O
Strip	O
and	O
the	O
San	O
Francisco	O
Giants	O
 '	O
stadium	O
,	O
AT&T	O
Park	O
.	O
</s>
<s>
World	O
Tour	O
is	O
the	O
first	O
Activision	O
game	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
to	O
support	O
dynamic	O
in-game	O
advertising	O
provided	O
by	O
IGA	O
Worldwide	O
;	O
similar	O
advertising	O
for	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
version	O
is	O
provided	O
by	O
Massive	O
Incorporated	O
.	O
</s>
<s>
The	O
unit	O
is	O
approximately	O
25%	O
larger	O
than	O
previous	O
controllers	B-Device
,	O
making	O
it	O
closer	O
to	O
the	O
size	O
of	O
a	O
real	O
guitar	O
.	O
</s>
<s>
The	O
neck	O
of	O
the	O
guitar	O
is	O
detachable	O
,	O
similar	O
to	O
the	O
Gibson	O
Les	O
Paul	O
controller	O
for	O
Guitar	B-Application
Hero	I-Application
III	I-Application
,	O
but	O
the	O
connector	O
has	O
been	O
hardened	O
to	O
avoid	O
connection	O
issues	O
experienced	O
with	O
the	O
previous	O
unit	O
.	O
</s>
<s>
Guitar	O
tracks	O
feature	O
notes	O
connected	O
by	O
a	O
semi-transparent	O
purple	O
line	O
,	O
(	O
except	O
for	O
the	B-Operating_System
Wii	I-Operating_System
and	O
PlayStation	B-Device
2	I-Device
version	O
,	O
in	O
which	O
semi-transparent	O
gems	O
replace	O
this	O
purple	O
line	O
)	O
called	O
"	O
Slider	O
Gems	O
"	O
;	O
the	O
player	O
can	O
play	O
these	O
notes	O
by	O
sliding	O
their	O
fingers	O
up	O
and	O
down	O
the	O
touch	O
pad	O
or	O
by	O
tapping	O
the	O
fret	O
buttons	O
without	O
strumming	O
.	O
</s>
<s>
The	O
touchpad	O
can	O
also	O
be	O
used	O
for	O
sustained	O
and	O
staccato	O
notes	O
in	O
the	O
music	B-Application
studio	O
feature	O
while	O
recording	O
guitar	O
,	O
and	O
is	O
used	O
for	O
finer	O
control	O
over	O
loops	O
when	O
recording	O
other	O
instruments	O
.	O
</s>
<s>
The	O
drum	O
kit	O
was	O
designed	O
with	O
help	O
from	O
John	O
Devacka	O
,	O
the	O
developer	O
of	O
MTV	B-Application
Drumscape	I-Application
,	O
and	O
developed	O
key	O
patents	O
used	O
for	O
most	O
modern	O
music	B-Application
games	I-Application
that	O
are	O
now	O
owned	O
by	O
Activision	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
version	O
of	O
the	O
drum	O
controller	O
includes	O
a	O
slot	O
for	O
the	B-Operating_System
Wii	I-Operating_System
Remote	O
to	O
fit	O
into	O
,	O
enabling	O
it	O
to	O
become	O
wireless	O
,	O
much	O
like	O
the	O
guitar	O
controller	O
introduced	O
for	O
the	B-Operating_System
Wii	I-Operating_System
version	O
of	O
Guitar	B-Application
Hero	I-Application
III	I-Application
.	O
</s>
<s>
The	O
official	O
microphone	O
used	O
for	O
vocals	O
uses	O
a	O
USB	B-Protocol
connection	O
.	O
</s>
<s>
For	O
other	O
consoles	O
,	O
such	O
as	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
and	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
a	O
headset	O
can	O
also	O
be	O
used	O
as	O
an	O
alternative	O
,	O
but	O
has	O
proven	O
to	O
be	O
less	O
reliable	O
as	O
it	O
tends	O
not	O
to	O
pick	O
up	O
the	O
audio	O
from	O
the	O
player	O
.	O
</s>
<s>
When	O
playing	O
vocals	O
,	O
a	O
standard	O
game	B-Device
controller	I-Device
,	O
or	O
Wii	B-Device
Remote	I-Device
on	O
the	B-Operating_System
Wii	I-Operating_System
version	O
,	O
is	O
necessary	O
in	O
order	O
to	O
navigate	O
menus	O
,	O
select	O
difficulties	O
and	O
pause	O
.	O
</s>
<s>
The	O
microphone	O
can	O
also	O
be	O
used	O
as	O
a	O
standard	O
recording	O
device	O
when	O
connected	O
to	O
a	O
casual	O
PC	O
USB	B-Protocol
port	O
.	O
</s>
<s>
World	O
Tour	O
works	O
with	O
older	O
Guitar	B-Application
Hero	I-Application
guitar	O
controllers	B-Device
.	O
</s>
<s>
Activision	O
stated	O
during	O
their	O
E3	O
2008	O
press	O
conference	O
that	O
Xbox	B-Operating_System
360	I-Operating_System
users	O
would	O
be	O
able	O
to	O
use	O
the	O
existing	O
Rock	B-Application
Band	I-Application
instrument	O
controllers	B-Device
as	O
well	O
as	O
other	O
third	O
party	O
controllers	B-Device
in	O
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
;	O
Rock	B-Application
Band	I-Application
instruments	O
for	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
are	O
not	O
guaranteed	O
to	O
work	O
in	O
World	O
Tour	O
,	O
though	O
Sony	O
is	O
attempting	O
to	O
help	O
make	O
these	O
units	O
compatible	O
.	O
</s>
<s>
All	O
Rock	B-Application
Band	I-Application
original	O
Harmonix	O
instruments	O
for	O
PlayStation	B-Device
2	I-Device
work	O
with	O
World	O
Tour	O
.	O
</s>
<s>
According	O
to	O
issue	O
027	O
of	O
the	O
UK	O
's	O
Official	O
PlayStation	O
Magazine	O
,	O
all	O
Guitar	B-Application
Hero	I-Application
and	O
Rock	B-Application
Band	I-Application
PS3	B-Operating_System
controllers	B-Device
are	O
cross-compatible	O
with	O
all	O
games	O
(	O
except	O
for	O
Guitar	B-Application
Hero	I-Application
:	I-Application
World	I-Application
Tour	I-Application
drums	O
on	O
Rock	B-Application
Band	I-Application
,	O
however	O
some	O
require	O
patching	O
,	O
which	O
is	O
done	O
automatically	O
when	O
connected	O
to	O
the	O
internet	O
)	O
.	O
</s>
<s>
Wired	O
Xbox	B-Operating_System
360	I-Operating_System
and	O
PlayStation	B-Operating_System
3	I-Operating_System
instruments	O
also	O
work	O
on	O
the	O
PlayStation	B-Device
2	I-Device
versions	O
of	O
World	O
Tour	O
,	O
as	O
well	O
as	O
later	O
Guitar	B-Application
Hero	I-Application
games	O
.	O
</s>
<s>
Both	O
Sony	O
and	O
Microsoft	O
announced	O
that	O
instruments	O
for	O
World	O
Tour	O
,	O
Rock	B-Application
Band	I-Application
2	I-Application
,	O
and	O
Konami	O
's	O
Rock	B-Application
Revolution	I-Application
would	O
work	O
between	O
all	O
three	O
games	O
on	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
and	O
Xbox	B-Operating_System
360	I-Operating_System
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
version	O
of	O
the	O
game	O
only	O
supports	O
guitar	O
controllers	B-Device
from	O
previous	O
Guitar	B-Application
Hero	I-Application
games	O
,	O
and	O
"	O
no	O
compatibility	O
with	O
any	O
other	O
peripherals	O
"	O
.	O
</s>
<s>
For	O
example	O
,	O
sections	O
of	O
the	O
lead	O
guitar	O
track	O
that	O
are	O
designed	O
to	O
be	O
played	O
on	O
the	O
new	O
World	O
Tour	O
controller	O
's	O
touchpad	O
can	O
be	O
played	O
by	O
tapping	O
the	O
frets	O
on	O
older	O
controllers	B-Device
without	O
strumming	O
.	O
</s>
<s>
When	O
using	O
Rock	B-Application
Bands	I-Application
drum	O
controller	O
,	O
which	O
has	O
one	O
fewer	O
percussion	O
pad	O
than	O
the	O
World	O
Tour	O
unit	O
and	O
lacks	O
velocity	O
sensitivity	O
,	O
two	O
of	O
the	O
lanes	O
on	O
the	O
"	O
World	O
Tour	O
"	O
drum	O
board	O
merge	O
,	O
reducing	O
the	O
note	O
track	O
to	O
four	O
drum	O
pads	O
and	O
bass	O
pedal	O
,	O
and	O
no	O
armored	O
notes	O
are	O
presented	O
.	O
</s>
<s>
The	O
fourth	O
major	O
entry	O
to	O
the	O
Guitar	B-Application
Hero	I-Application
series	I-Application
,	O
at	O
the	O
time	O
named	O
Guitar	B-Application
Hero	I-Application
IV	I-Application
,	O
was	O
officially	O
announced	O
upon	O
the	O
merger	O
of	O
Activision	O
and	O
Vivendi	O
Games	O
in	O
December	O
2007	O
.	O
</s>
<s>
says	O
the	O
Guitar	B-Application
Hero	I-Application
Team	O
.	O
</s>
<s>
The	O
game	O
's	O
new	O
name	O
,	O
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
,	O
was	O
officially	O
announced	O
by	O
Activision	O
in	O
May	O
2008	O
.	O
</s>
<s>
Activision	O
and	O
RedOctane	O
had	O
previously	O
registered	O
for	O
trademarks	O
on	O
"	O
Guitar	O
Villain	O
"	O
,	O
"	O
Drum	O
Villain	O
"	O
,	O
"	O
Keyboard	O
Hero	O
"	O
,	O
"	O
Drum	O
Hero	O
"	O
and	O
"	O
Band	B-Application
Hero	I-Application
"	O
.	O
</s>
<s>
Analysts	O
speculated	O
that	O
future	O
Guitar	B-Application
Hero	I-Application
would	O
need	O
to	O
include	O
additional	O
instrument	O
peripherals	O
in	O
order	O
to	O
compete	O
against	O
former	O
Guitar	B-Application
Hero	I-Application
developer	O
Harmonixs	O
Rock	B-Application
Band	I-Application
.	O
</s>
<s>
Activision	O
's	O
CEO	O
Bobby	O
Kotick	O
and	O
early	O
previews	O
of	O
the	O
game	O
revealed	O
that	O
Guitar	B-Application
Hero	I-Application
IV	I-Application
would	O
branch	O
out	O
into	O
other	O
instruments	O
and	O
vocals	O
.	O
</s>
<s>
This	O
work	O
was	O
later	O
folded	O
into	O
the	O
Guitar	B-Application
Hero	I-Application
series	I-Application
after	O
Neversoft	O
was	O
chosen	O
as	O
developer	O
of	O
the	O
series	O
.	O
</s>
<s>
Neversoft	O
's	O
Allen	O
Flores	O
stated	O
that	O
with	O
the	O
addition	O
of	O
the	O
existing	O
drum	O
gameplay	O
,	O
the	O
development	O
of	O
World	O
Tour	O
took	O
under	O
a	O
year	O
,	O
starting	O
development	O
immediately	O
after	O
the	O
release	O
of	O
Guitar	B-Application
Hero	I-Application
III	I-Application
.	O
</s>
<s>
The	O
ability	O
to	O
open-strum	O
the	O
guitar	O
was	O
a	O
feature	O
that	O
was	O
planned	O
for	O
Guitar	B-Application
Hero	I-Application
III	I-Application
but	O
was	O
removed	O
before	O
release	O
,	O
finding	O
that	O
it	O
was	O
too	O
difficult	O
on	O
the	O
guitar	O
tracks	O
.	O
</s>
<s>
Once	O
the	O
song	O
was	O
mixed	O
for	O
use	O
by	O
the	O
development	O
team	O
,	O
a	O
"	O
tempo	O
map	O
"	O
was	O
created	O
by	O
one	O
developer	O
;	O
this	O
map	O
denotes	O
the	O
beats	O
in	O
the	O
music	B-Application
which	O
then	O
can	O
be	O
used	O
by	O
the	O
rest	O
of	O
the	O
development	O
team	O
.	O
</s>
<s>
Note-for-note	O
tracking	O
from	O
the	O
song	O
was	O
then	O
performed	O
,	O
and	O
in	O
some	O
cases	O
,	O
changes	O
were	O
made	O
to	O
account	O
for	O
sections	O
that	O
cannot	O
be	O
replicated	O
on	O
the	O
game	B-Device
controllers	I-Device
;	O
the	O
final	O
track	O
represented	O
the	O
note	O
track	O
for	O
the	O
Expert	O
difficulty	O
of	O
the	O
song	O
.	O
</s>
<s>
The	O
difficulty	O
model	O
is	O
based	O
on	O
that	O
from	O
Guitar	B-Application
Hero	I-Application
:	I-Application
Aerosmith	I-Application
,	O
which	O
was	O
adjusted	O
from	O
the	O
Guitar	B-Application
Hero	I-Application
III	I-Application
model	O
after	O
the	O
team	O
received	O
negative	O
feedback	O
from	O
players	O
regarding	O
a	O
"	O
brick	O
wall	O
"	O
in	O
the	O
difficulty	O
progression	O
in	O
that	O
game	O
.	O
</s>
<s>
The	O
song	O
list	O
for	O
World	O
Tour	O
started	O
as	O
the	O
list	O
of	O
songs	O
that	O
Neversoft	O
wanted	O
to	O
include	O
in	O
Guitar	B-Application
Hero	I-Application
III	I-Application
,	O
but	O
had	O
failed	O
to	O
get	O
into	O
the	O
game	O
or	O
as	O
downloadable	B-Protocol
content	I-Protocol
;	O
the	O
list	O
was	O
eventually	O
expanded	O
to	O
over	O
500	O
songs	O
.	O
</s>
<s>
The	O
song	O
list	O
was	O
then	O
prioritized	O
based	O
on	O
what	O
the	O
team	O
thought	O
would	O
be	O
best	O
in	O
the	O
game	O
,	O
and	O
then	O
going	O
after	O
the	O
music	B-Application
that	O
would	O
take	O
the	O
longest	O
time	O
to	O
license	O
,	O
as	O
was	O
the	O
case	O
for	O
the	O
Jimi	O
Hendrix	O
songs	O
.	O
</s>
<s>
The	O
band	O
Tool	O
,	O
which	O
has	O
n't	O
licensed	O
its	O
music	B-Application
since	O
1996	O
,	O
allowed	O
for	O
the	O
inclusion	O
of	O
three	O
of	O
its	O
songs	O
in	O
World	O
Tour	O
as	O
long	O
they	O
were	O
involved	O
with	O
the	O
artwork	O
and	O
tracking	O
of	O
the	O
songs	O
for	O
the	O
game	O
,	O
leading	O
to	O
the	O
creation	O
of	O
the	O
art-like	O
Tool	O
venue	O
.	O
</s>
<s>
They	O
also	O
had	O
to	O
remove	O
the	O
"	O
Jam	O
Over	O
"	O
mode	O
planned	O
for	O
the	O
game	O
's	O
music	B-Application
creation	O
section	O
that	O
would	O
have	O
allowed	O
players	O
to	O
start	O
with	O
one	O
of	O
the	O
game	O
's	O
songs	O
and	O
play	O
over	O
it	O
on	O
their	O
instruments	O
;	O
this	O
feature	O
was	O
removed	O
in	O
order	O
to	O
keep	O
the	O
final	O
product	O
polished	O
and	O
on-time	O
.	O
</s>
<s>
The	O
custom	O
song	O
creation	O
feature	O
was	O
inspired	O
by	O
the	O
current	O
"	O
hacking	O
environment	O
"	O
that	O
has	O
arisen	O
from	O
the	O
first	O
two	O
Guitar	B-Application
Hero	I-Application
games	O
,	O
where	O
players	O
would	O
create	O
new	O
tracks	O
and	O
share	O
them	O
with	O
others	O
.	O
</s>
<s>
A	O
version	O
of	O
the	O
game	O
has	O
been	O
rated	O
by	O
the	O
ESRB	O
for	O
Microsoft	B-Application
Windows	I-Application
computers	O
,	O
though	O
Activision	O
has	O
not	O
officially	O
confirmed	O
this	O
version	O
.	O
</s>
<s>
A	O
PC	O
version	O
of	O
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
was	O
confirmed	O
by	O
Intel	O
on	O
February	O
27	O
,	O
2009	O
and	O
displayed	O
at	O
CeBIT	O
on	O
March	O
3	O
–	O
8	O
,	O
2009	O
in	O
Hannover	O
,	O
Germany	O
.	O
</s>
<s>
The	O
bass	O
guitar	O
is	O
the	O
Les	O
Paul	O
guitar	O
,	O
the	O
same	O
model	O
as	O
bundled	O
with	O
Guitar	B-Application
Hero	I-Application
III	I-Application
:	I-Application
Legends	I-Application
of	I-Application
Rock	I-Application
.	O
</s>
<s>
Activision	O
created	O
a	O
series	O
of	O
television	O
advertisements	O
directed	O
by	O
Brett	O
Ratner	O
based	O
on	O
the	O
famous	O
scene	O
from	O
Risky	O
Business	O
where	O
Tom	O
Cruise	O
dances	O
to	O
Bob	O
Seger	O
's	O
"	O
Old	O
Time	O
Rock	O
and	O
Roll	O
"	O
in	O
a	O
shirt	O
and	O
underwear	O
,	O
each	O
featuring	O
a	O
different	O
set	O
of	O
celebrities	O
lip	O
synching	O
to	O
the	O
lyrics	O
while	O
using	O
the	O
new	O
instrument	O
controllers	B-Device
.	O
</s>
<s>
A	O
YouTube	B-General_Concept
viral	O
video	O
entitled	O
"	O
Bike	O
Hero	O
"	O
showed	O
what	O
appeared	O
to	O
be	O
a	O
teenager	O
riding	O
a	O
bike	O
along	O
a	O
route	O
marked	O
with	O
symbols	O
similar	O
in	O
appearance	O
to	O
the	O
in-game	O
note	O
tracks	O
with	O
LED	O
lights	O
on	O
the	O
handlebars	O
blinking	O
in	O
time	O
to	O
the	O
notes	O
to	O
the	O
song	O
"	O
Prisoner	O
of	O
Society	O
"	O
by	O
The	O
Living	O
End	O
.	O
</s>
<s>
The	O
video	O
was	O
later	O
determined	O
to	O
be	O
the	O
work	O
of	O
a	O
viral	O
marketing	O
company	O
Droga5	O
in	O
cooperation	O
with	O
Activision	O
to	O
promote	O
the	O
Guitar	B-Application
Hero	I-Application
games	O
.	O
</s>
<s>
Some	O
of	O
the	O
songs	O
from	O
the	O
disc	O
are	O
exportable	O
to	O
both	O
Guitar	B-Application
Hero	I-Application
5	I-Application
and	O
Band	B-Application
Hero	I-Application
for	O
a	O
small	O
fee	O
,	O
with	O
music	B-Application
licensing	O
rights	O
limiting	O
which	O
songs	O
can	O
be	O
exported	O
.	O
</s>
<s>
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
allows	O
players	O
to	O
create	O
their	O
own	O
songs	O
through	O
the	O
"	O
Music	B-Application
Studio	O
"	O
and	O
share	O
them	O
with	O
others	O
through	O
the	O
Xbox	B-Application
Live	I-Application
,	O
PlayStation	B-Device
Network	I-Device
,	O
and	O
Nintendo	B-Application
Wi-Fi	I-Application
Connection	I-Application
internet	O
capabilities	O
.	O
</s>
<s>
The	O
Studio	O
is	O
similar	O
to	O
Apples	O
GarageBand	B-Application
software	O
.	O
</s>
<s>
PlayStation	B-Operating_System
3	I-Operating_System
users	O
with	O
MIDI-compatible	O
computers	O
are	O
also	O
able	O
to	O
connect	O
their	O
computer	O
to	O
the	O
console	O
and	O
use	O
it	O
for	O
song	O
composition	O
;	O
a	O
similar	O
feature	O
is	O
sought	O
for	O
Xbox	B-Operating_System
360	I-Operating_System
owners	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
2	I-Device
version	O
of	O
the	O
game	O
features	O
custom	O
song	O
creation	O
,	O
but	O
does	O
not	O
support	O
the	O
uploading	O
service	O
.	O
</s>
<s>
In	O
addition	O
to	O
custom	O
songs	O
,	O
players	O
of	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
,	O
PlayStation	B-Operating_System
3	I-Operating_System
,	O
and	O
Wii	B-Operating_System
versions	O
were	O
able	O
to	O
download	O
new	O
licensed	O
songs	O
for	O
the	O
game	O
.	O
</s>
<s>
This	O
is	O
the	O
first	O
game	O
in	O
the	O
Guitar	B-Application
Hero	I-Application
series	I-Application
that	O
supported	O
download	O
functionality	O
on	O
the	B-Operating_System
Wii	I-Operating_System
.	O
</s>
<s>
Wii	B-Operating_System
users	O
are	O
able	O
to	O
store	O
downloaded	O
songs	O
on	O
either	O
the	B-Operating_System
Wii	I-Operating_System
's	O
internal	O
memory	O
or	O
on	O
an	O
SD	B-Device
Card	I-Device
in	O
a	O
"	O
Rock	O
Archive	O
,	O
"	O
and	O
then	O
were	O
able	O
to	O
add	O
songs	O
to	O
playlists	O
from	O
this	O
.	O
</s>
<s>
When	O
playing	O
tracks	O
stored	O
on	O
an	O
SD	B-Device
Card	I-Device
,	O
each	O
song	O
was	O
automatically	O
copied	O
to	O
a	O
"	O
content	O
cache	O
"	O
on	O
the	B-Operating_System
Wii	I-Operating_System
's	O
flash	O
memory	O
for	O
play	O
and	O
then	O
deleted	O
after	O
the	O
song	O
is	O
finished	O
.	O
</s>
<s>
This	O
required	O
about	O
200	O
free	O
memory	O
blocks	O
on	O
the	B-Operating_System
Wii	I-Operating_System
.	O
</s>
<s>
Neversoft	O
and	O
Activision	O
expressed	O
intentions	O
to	O
release	O
downloadable	B-Protocol
content	I-Protocol
more	O
frequently	O
,	O
but	O
this	O
has	O
yet	O
to	O
materialize	O
since	O
the	O
game	O
was	O
released	O
in	O
2008	O
.	O
</s>
<s>
Downloadable	B-Protocol
content	I-Protocol
was	O
available	O
through	O
the	O
in-game	O
store	O
and	O
includes	O
full	O
album	O
downloads	O
and	O
more	O
regular	O
releases	O
compared	O
to	O
Guitar	B-Application
Hero	I-Application
III	I-Application
.	O
</s>
<s>
Most	O
existing	O
downloadable	B-Protocol
content	I-Protocol
for	O
Guitar	B-Application
Hero	I-Application
III	I-Application
is	O
not	O
playable	O
in	O
World	O
Tour	O
,	O
due	O
to	O
the	O
lack	O
of	O
having	O
tracks	O
for	O
all	O
four	O
instruments	O
for	O
the	O
latter	O
game	O
.	O
</s>
<s>
However	O
,	O
with	O
the	O
release	O
of	O
Metallicas	O
Death	O
Magnetic	O
,	O
the	O
developers	O
were	O
able	O
to	O
prepare	O
the	O
tracks	O
in	O
Guitar	B-Application
Hero	I-Application
III	I-Application
to	O
have	O
the	O
required	O
portions	O
needed	O
for	O
World	O
Tour	O
,	O
and	O
thus	O
these	O
tracks	O
are	O
forward-compatible	O
.	O
</s>
<s>
Activision	O
has	O
also	O
stated	O
that	O
they	O
are	O
considering	O
a	O
monthly	O
subscription	O
service	O
to	O
deliver	O
downloadable	B-Protocol
content	I-Protocol
to	O
users	O
for	O
future	O
games	O
.	O
</s>
<s>
Most	O
of	O
the	O
downloadable	B-Protocol
content	I-Protocol
(	O
152	O
of	O
158	O
songs	O
as	O
of	O
early	O
August	O
2009	O
)	O
is	O
exportable	O
to	O
both	O
Guitar	B-Application
Hero	I-Application
5	I-Application
and	O
Band	B-Application
Hero	I-Application
,	O
updated	O
to	O
include	O
new	O
features	O
introduced	O
in	O
those	O
games	O
.	O
</s>
<s>
However	O
,	O
Guitar	B-Application
Hero	I-Application
5	I-Application
downloadable	B-Protocol
content	I-Protocol
is	O
not	O
playable	O
in	O
World	O
Tour	O
.	O
</s>
<s>
Users	O
encountered	O
several	O
technical	O
issues	O
with	O
the	O
instrument	O
controllers	B-Device
upon	O
release	O
of	O
the	O
game	O
.	O
</s>
<s>
Some	O
users	O
have	O
also	O
found	O
that	O
,	O
despite	O
the	O
assurance	O
of	O
instrument	O
compatibility	O
,	O
the	O
PlayStation	B-Operating_System
3	I-Operating_System
World	O
Tour	O
drum	O
kit	O
does	O
not	O
work	O
with	O
Rock	B-Application
Band	I-Application
2	I-Application
,	O
however	O
the	O
1.1	O
patch	O
for	O
Rock	B-Application
Band	I-Application
2	I-Application
on	O
PS3	B-Operating_System
has	O
fixed	O
this	O
issue	O
.	O
</s>
<s>
Activision	O
has	O
acknowledged	O
that	O
drum	O
sets	O
from	O
earlier	O
manufacturing	O
processes	O
may	O
be	O
prone	O
to	O
these	O
errors	O
,	O
and	O
have	O
set	O
up	O
several	O
support	O
threads	O
on	O
their	O
Guitar	B-Application
Hero	I-Application
forums	O
to	O
address	O
the	O
issue	O
and	O
assist	O
users	O
in	O
equipment	O
replacement	O
.	O
</s>
<s>
Guitar	B-Application
Hero	I-Application
World	I-Application
Tour	I-Application
has	O
received	O
generally	O
positive	O
reviews	O
from	O
critics	O
,	O
many	O
making	O
comparisons	O
between	O
it	O
and	O
the	O
Rock	B-Application
Band	I-Application
series	O
.	O
</s>
<s>
1UP	O
noted	O
that	O
while	O
World	O
Tour	O
is	O
not	O
as	O
good	O
a	O
"	O
party	O
game	O
"	O
as	O
Rock	B-Application
Band	I-Application
,	O
the	O
game	O
still	O
provides	O
"	O
great	O
peripherals	O
and	O
fun-to-play	O
music	B-Application
"	O
and	O
delivers	O
what	O
the	O
player	O
should	O
expect	O
.	O
</s>
<s>
IGN	O
's	O
review	O
was	O
lukewarm	O
,	O
noting	O
that	O
"	O
A	O
number	O
of	O
things	O
it	O
tries	O
to	O
accomplish	O
were	O
already	O
done	O
better	O
in	O
Rock	B-Application
Band	I-Application
"	O
,	O
but	O
stated	O
that	O
the	O
game	O
would	O
be	O
a	O
good	O
"	O
stepping	O
point	O
"	O
for	O
the	O
next	O
iteration	O
of	O
the	O
series	O
.	O
</s>
<s>
While	O
reviewers	O
were	O
satisfied	O
with	O
the	O
single	O
player	O
modes	O
of	O
the	O
game	O
,	O
the	O
Band	O
tour	O
mode	O
was	O
considered	O
weaker	O
than	O
Rock	B-Application
Bands	I-Application
Tour	O
mode	O
.	O
</s>
<s>
The	O
interface	O
for	O
a	O
full	O
band	O
,	O
despite	O
being	O
similar	O
to	O
Rock	B-Application
Band	I-Application
,	O
was	O
found	O
to	O
be	O
confusing	O
,	O
making	O
it	O
difficult	O
to	O
determine	O
if	O
a	O
fellow	O
bandmember	O
was	O
about	O
to	O
fail	O
or	O
identifying	O
how	O
much	O
Star	O
Power	O
the	O
band	O
had	O
accumulated	O
.	O
</s>
<s>
The	O
Band	O
tour	O
was	O
found	O
to	O
be	O
little	O
different	O
from	O
the	O
single	O
player	O
modes	O
,	O
and	O
lacked	O
the	O
additional	O
incentives	O
and	O
challenges	O
that	O
Rock	B-Application
Band	I-Application
had	O
.	O
</s>
<s>
The	O
note	O
charts	O
and	O
the	O
game	O
's	O
difficulty	O
curve	O
were	O
found	O
to	O
be	O
significantly	O
easier	O
than	O
the	O
more	O
punishing	O
ones	O
in	O
Guitar	B-Application
Hero	I-Application
III	I-Application
.	O
</s>
<s>
Critics	O
did	O
observe	O
poor	O
note	O
charting	O
,	O
stating	O
that	O
some	O
of	O
the	O
song	O
charts	O
"	O
simply	O
do	O
n't	O
match	O
the	O
music	B-Application
"	O
and	O
that	O
"	O
you	O
'll	O
be	O
asked	O
to	O
hit	O
notes	O
where	O
there	O
are	O
none	O
,	O
or	O
not	O
hit	O
notes	O
that	O
are	O
there.	O
"	O
</s>
<s>
Reviews	O
also	O
commented	O
on	O
the	O
number	O
of	O
songs	O
that	O
overlapped	O
with	O
Rock	B-Application
Band	I-Application
2s	I-Application
set	O
list	O
.	O
</s>
<s>
The	O
drum	O
kit	O
has	O
been	O
praised	O
for	O
the	O
ease	O
of	O
setup	O
,	O
the	O
drum	O
pad	O
layout	O
,	O
and	O
the	O
response	O
of	O
the	O
drums	O
,	O
though	O
the	O
lack	O
of	O
a	O
means	O
to	O
fix	O
the	O
location	O
of	O
bass	O
drum	O
pedal	O
was	O
seen	O
as	O
a	O
drawback	O
when	O
compared	O
to	O
the	O
Rock	B-Application
Band	I-Application
drum	O
kit	O
.	O
</s>
<s>
The	O
music	B-Application
creation	O
feature	O
of	O
the	O
game	O
,	O
while	O
seen	O
as	O
a	O
useful	O
addition	O
to	O
the	O
game	O
,	O
was	O
found	O
to	O
be	O
difficult	O
to	O
use	O
,	O
suffered	O
from	O
on-screen	O
lag	O
that	O
could	O
interfere	O
with	O
song	O
creation	O
,	O
and	O
the	O
quality	O
of	O
the	O
resulting	O
songs	O
were	O
compared	O
to	O
ring	O
tones	O
for	O
cell	O
phones	O
.	O
</s>
<s>
The	O
character	O
customization	O
in	O
World	O
Tour	O
was	O
generally	O
seen	O
as	O
an	O
improvement	O
over	O
the	O
limitations	O
of	O
Rock	B-Application
Band	I-Application
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
version	O
received	O
additional	O
praise	O
from	O
reviewers	O
,	O
mostly	O
from	O
the	O
changes	O
in	O
the	B-Operating_System
Wii	I-Operating_System
operation	O
to	O
accommodate	O
the	O
game	O
's	O
Music	B-Application
Store	O
and	O
online	O
play	O
features	O
.	O
</s>
<s>
IGN	O
noted	O
that	O
most	O
of	O
the	O
credit	O
for	O
the	B-Operating_System
Wii	I-Operating_System
version	O
is	O
due	O
to	O
Vicarious	O
Visions	O
,	O
as	O
that	O
"	O
the	O
only	O
real	O
aspects	O
that	O
hold	O
the	O
game	O
back	O
from	O
being	O
truly	O
amazing	O
overall	O
are	O
-	O
oddly	O
enough	O
-	O
the	O
ones	O
implemented	O
by	O
Neversoft	O
's	O
core	O
design	O
"	O
.	O
</s>
<s>
It	O
was	O
awarded	O
Best	O
Music/Rhythm	O
Game	O
on	O
the	B-Operating_System
Wii	I-Operating_System
by	O
IGN	O
in	O
its	O
2008	O
video	O
game	O
awards	O
.	O
</s>
<s>
IGN	O
also	O
nominated	O
it	O
for	O
several	O
other	O
Wii-specific	O
awards	O
,	O
including	O
Best	O
Family	O
Game	O
,	O
Best	O
Online	O
Multiplayer	O
Game	O
,	O
and	O
Game	O
of	O
the	O
Year	O
.	O
</s>
<s>
World	O
Tour	O
sold	O
more	O
than	O
534,000	O
units	O
during	O
its	O
first	O
week	O
of	O
release	O
,	O
less	O
than	O
half	O
of	O
the	O
sales	O
of	O
Guitar	B-Application
Hero	I-Application
III	I-Application
during	O
the	O
same	O
period	O
,	O
with	O
the	B-Operating_System
Wii	I-Operating_System
version	O
selling	O
the	O
most	O
with	O
183,000	O
units	O
.	O
</s>
<s>
During	O
the	O
month	O
of	O
November	O
2008	O
,	O
978,000	O
units	O
were	O
sold	O
,	O
with	O
475,000	O
being	O
for	O
the	B-Operating_System
Wii	I-Operating_System
platform	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
version	O
was	O
the	O
fifth	O
best-selling	O
game	O
of	O
December	O
2008	O
in	O
the	O
United	O
States	O
,	O
selling	O
in	O
excess	O
of	O
850,000	O
copies	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
2	I-Device
version	O
was	O
the	O
17th	O
best-selling	O
game	O
and	O
best-selling	O
PlayStation	B-Device
2	I-Device
game	O
of	O
the	O
same	O
month	O
in	O
that	O
region	O
.	O
</s>
<s>
The	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
and	O
PlayStation	B-Operating_System
3	I-Operating_System
versions	O
did	O
not	O
rank	O
,	O
but	O
ranked	O
the	O
sixth	O
and	O
fifth	O
best-selling	O
games	O
respectively	O
for	O
their	O
respective	O
systems	O
.	O
</s>
<s>
Guitar	B-Application
Hero	I-Application
:	I-Application
World	I-Application
Tour	I-Application
-	O
Definitive	O
Edition	O
(	O
or	O
GHWTDE	O
for	O
short	O
)	O
is	O
a	O
community-made	B-Application
mod	O
of	O
the	O
PC	O
version	O
of	O
World	O
Tour	O
.	O
</s>
<s>
It	O
not	O
only	O
contains	O
every	O
song	O
from	O
the	O
base	O
game	O
,	O
but	O
players	O
can	O
add	O
additional	O
songs	O
from	O
previous	O
and	O
future	O
Guitar	B-Application
Hero	I-Application
games	O
with	O
their	O
animations	O
ported	O
too	O
,	O
as	O
well	O
as	O
community-made	B-Application
characters	O
,	O
instruments	O
and	O
venues	O
released	O
on	O
Nexus	O
Mods	O
.	O
</s>
<s>
The	O
next	O
GHWTDE	O
update	O
is	O
set	O
to	O
release	O
with	O
venues	O
ported	O
from	O
Guitar	B-Application
Hero	I-Application
III	I-Application
:	I-Application
Legends	I-Application
of	I-Application
Rock	I-Application
,	O
Metallica	B-Application
,	O
Smash	B-Application
Hits	I-Application
and	O
Van	B-Application
Halen	I-Application
.	O
</s>
