<s>
An	O
analog	B-Device
stick	I-Device
,	O
(	O
analogue	B-Device
stick	I-Device
in	O
British	O
English	O
)	O
also	O
known	O
as	O
a	O
control	B-Device
stick	I-Device
or	O
thumbstick	B-Device
,	O
is	O
an	O
input	O
device	O
for	O
a	O
controller	O
(	O
often	O
a	O
game	B-Device
controller	I-Device
)	O
that	O
is	O
used	O
for	O
two-dimensional	O
input	O
.	O
</s>
<s>
An	O
analog	B-Device
stick	I-Device
is	O
a	O
variation	O
of	O
a	O
joystick	B-Device
,	O
consisting	O
of	O
a	O
protrusion	O
from	O
the	O
controller	O
;	O
input	O
is	O
based	O
on	O
the	O
position	O
of	O
this	O
protrusion	O
in	O
relation	O
to	O
the	O
default	O
"	O
center	O
"	O
position	O
.	O
</s>
<s>
While	O
digital	O
sticks	O
rely	O
on	O
single	O
electrical	O
connections	O
for	O
movement	O
(	O
using	O
internal	O
digital	O
electrical	O
contacts	O
for	O
up	O
,	O
down	O
,	O
left	O
and	O
right	O
)	O
,	O
analog	B-Device
sticks	I-Device
use	O
continuous	O
electrical	O
activity	O
running	O
through	O
potentiometers	B-Device
to	O
measure	O
the	O
exact	O
position	O
of	O
the	O
stick	O
within	O
its	O
full	O
range	O
of	O
motion	O
.	O
</s>
<s>
The	O
analog	B-Device
stick	I-Device
has	O
greatly	O
overtaken	O
the	O
D-pad	B-Device
in	O
both	O
prominence	O
and	O
usage	O
in	O
console	B-Application
video	I-Application
games	I-Application
.	O
</s>
<s>
The	O
initial	O
prevalence	O
of	O
analog	B-Device
sticks	I-Device
was	O
as	O
peripherals	O
for	O
flight	B-Application
simulator	I-Application
games	O
,	O
to	O
better	O
reflect	O
the	O
subtleties	O
of	O
control	O
required	O
for	O
such	O
titles	O
.	O
</s>
<s>
It	O
was	O
during	O
the	O
fifth	O
console	O
generation	O
that	O
Nintendo	O
announced	O
it	O
would	O
integrate	O
an	O
analog	B-Device
stick	I-Device
into	O
its	O
iconic	O
Nintendo	B-Device
64	I-Device
controller	I-Device
,	O
a	O
step	O
which	O
would	O
pave	O
the	O
way	O
for	O
subsequent	O
leading	O
console	O
manufacturers	O
to	O
follow	O
suit	O
.	O
</s>
<s>
An	O
analog	B-Device
stick	I-Device
is	O
often	O
used	O
to	O
move	O
some	O
game	O
object	O
,	O
usually	O
the	O
playable	O
character	O
.	O
</s>
<s>
The	O
analog	B-Device
stick	I-Device
can	O
serve	O
a	O
great	O
variety	O
of	O
other	O
functions	O
,	O
depending	O
on	O
the	O
game	O
.	O
</s>
<s>
Today	O
many	O
analog	B-Device
sticks	I-Device
can	O
also	O
be	O
pushed	O
in	O
like	O
conventional	O
face	O
buttons	O
of	O
a	O
controller	O
,	O
to	O
allow	O
for	O
more	O
functions	O
.	O
</s>
<s>
With	O
the	O
prevalence	O
of	O
analog	B-Device
sticks	I-Device
,	O
the	O
aforementioned	O
limitations	O
of	O
the	O
D-pad	B-Device
ceased	O
to	O
be	O
an	O
issue	O
.	O
</s>
<s>
Two	O
analog	B-Device
sticks	I-Device
offer	O
greater	O
functionality	O
than	O
a	O
single	O
stick	O
.	O
</s>
<s>
On	O
some	O
modern	O
game	B-Device
controllers	I-Device
,	O
the	O
analog	B-Device
sticks	I-Device
are	O
"	O
staggered	O
"	O
,	O
such	O
that	O
the	O
left	O
stick	O
is	O
positioned	O
to	O
the	O
upper	O
left	O
of	O
the	O
D-pad	B-Device
while	O
the	O
right	O
stick	O
is	O
positioned	O
to	O
the	O
lower	O
left	O
of	O
the	O
face	O
buttons	O
.	O
</s>
<s>
The	O
controllers	B-Device
of	O
all	O
of	O
Microsoft	O
's	O
Xbox	B-Protocol
consoles	O
(	O
Xbox	B-Device
controller	I-Device
,	O
Xbox	B-Device
360	I-Device
controller	I-Device
and	O
Xbox	B-Device
Wireless	I-Device
Controller	I-Device
)	O
,	O
as	O
well	O
as	O
controllers	B-Device
for	O
Nintendo	O
's	O
GameCube	B-Application
and	O
Switch	B-Application
(	O
GameCube	B-Device
controller	I-Device
,	O
the	O
dual	O
Joy-Con	B-General_Concept
Comfort	O
Grip	O
and	O
the	O
Nintendo	B-Device
Switch	I-Device
Pro	I-Device
Controller	I-Device
)	O
,	O
utilize	O
a	O
staggered	O
analog	B-Device
stick	I-Device
layout	O
.	O
</s>
<s>
Other	O
controllers	B-Device
instead	O
have	O
the	O
two	O
analog	B-Device
sticks	I-Device
in	O
a	O
symmetrical	O
configuration	O
with	O
a	O
D-pad	B-Device
on	O
the	O
left	O
thumb	O
position	O
and	O
face	O
buttons	O
at	O
the	O
right	O
thumb	O
position	O
,	O
with	O
analog	B-Device
sticks	I-Device
below	O
and	O
closer	O
to	O
the	O
center	O
on	O
both	O
sides	O
.	O
</s>
<s>
Sony	O
's	O
PlayStation-series	O
analog	O
controllersthe	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
,	O
DualShock	O
,	O
DualShock	O
2	O
,	O
Sixaxis	B-Device
,	O
DualShock	O
3	O
,	O
DualShock	O
4	O
and	O
DualSenseall	O
use	O
this	O
configuration	O
,	O
with	O
the	O
remainder	O
of	O
the	O
controller	O
layout	O
closely	O
resembling	O
the	O
original	O
digital	O
PlayStation	B-Device
controller	I-Device
.	O
</s>
<s>
The	O
Classic	B-Device
Controller	I-Device
for	O
the	B-Operating_System
Wii	I-Operating_System
also	O
uses	O
this	O
configuration	O
.	O
</s>
<s>
The	O
original	O
configuration	O
of	O
the	B-Operating_System
Wii	I-Operating_System
U	O
GamePad	O
controller	O
had	O
twin	O
analog	O
"	O
Circle	O
Pads	O
"	O
positioned	O
symmetrically	O
above	O
the	O
D-pad	B-Device
and	O
face	O
buttons	O
,	O
but	O
was	O
reconfigured	O
to	O
have	O
twin	O
clickable	O
analog	B-Device
sticks	I-Device
several	O
months	O
ahead	O
of	O
the	O
system	O
's	O
planned	O
launch	O
.	O
</s>
<s>
This	O
setup	O
also	O
carried	O
over	O
to	O
the	B-Operating_System
Wii	I-Operating_System
U	O
Pro	O
Controller	O
.	O
</s>
<s>
With	O
genres	O
such	O
as	O
action	B-Application
,	O
adventure	O
games	O
,	O
platforming	O
,	O
and	O
shooting	O
,	O
the	O
left	O
stick	O
normally	O
controls	O
the	O
character	O
's	O
movement	O
while	O
the	O
second	O
stick	O
controls	O
the	O
camera	O
.	O
</s>
<s>
The	O
use	O
of	O
a	O
second	O
analog	B-Device
stick	I-Device
alleviated	O
problems	O
in	O
many	O
earlier	O
platform	O
games	O
,	O
in	O
which	O
the	O
camera	O
was	O
notorious	O
for	O
bad	O
positioning	O
.	O
</s>
<s>
In	O
Namco	O
's	O
Katamari	B-Application
Damacy	I-Application
and	O
its	O
sequels	O
,	O
both	O
analog	B-Device
sticks	I-Device
are	O
used	O
at	O
once	O
to	O
control	O
the	O
player	O
's	O
character	O
.	O
</s>
<s>
In	O
spite	O
of	O
widespread	O
adoption	O
of	O
dual	B-Device
analog	I-Device
sticks	O
,	O
a	O
few	O
modern	O
video	O
game	O
systems	O
are	O
designed	O
without	O
a	O
second	O
analog	B-Device
stick	I-Device
,	O
namely	O
the	B-Operating_System
Wii	I-Operating_System
's	O
standard	O
controller	O
(	O
whose	O
lone	O
analog	B-Device
stick	I-Device
is	O
implemented	O
in	O
the	B-Operating_System
Wii	I-Operating_System
Remote	O
's	O
Nunchuk	O
attachment	O
)	O
,	O
Sony	O
's	O
PSP	B-Operating_System
and	O
Nintendo	O
's	O
3DS	B-Operating_System
.	O
</s>
<s>
While	O
the	B-Operating_System
Wii	I-Operating_System
's	O
abovementioned	O
supplemental	O
Classic	B-Device
Controller	I-Device
accessory	O
and	O
its	O
initial	O
backwards	B-General_Concept
compatibility	I-General_Concept
support	O
of	O
the	O
GameCube	B-Device
controller	I-Device
allow	B-Application
for	I-Application
dual-stick	I-Application
control	I-Application
schemes	I-Application
in	I-Application
certain	I-Application
games	I-Application
,	O
the	O
PSP	B-Operating_System
's	O
complete	O
lack	O
of	O
a	O
second	O
analog	B-Device
stick	I-Device
and	O
later	O
the	O
3DS	B-Operating_System
 '	O
initial	O
lack	O
of	O
such	O
feature	O
have	O
been	O
criticized	O
.	O
</s>
<s>
Nintendo	O
has	O
since	O
released	O
an	O
add-on	O
for	O
the	O
3DS	B-Operating_System
that	O
adds	O
,	O
among	O
other	O
things	O
,	O
a	O
second	O
analog	O
"	O
circle	O
pad	O
"	O
.	O
</s>
<s>
The	O
follow-up	O
to	O
the	O
PSP	B-Operating_System
,	O
the	O
PlayStation	B-Device
Vita	I-Device
,	O
features	O
dual	B-Device
analog	I-Device
sticks	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
handheld	B-Application
game	I-Application
console	I-Application
to	O
do	O
so	O
.	O
</s>
<s>
The	O
New	B-Device
Nintendo	I-Device
3DS	I-Device
line	O
of	O
systems	O
added	O
a	O
second	O
analog	O
controller	O
,	O
known	O
as	O
the	O
"	O
C-Stick	O
"	O
to	O
the	O
right	O
side	O
of	O
the	O
device	O
.	O
</s>
<s>
To	O
operate	O
properly	O
,	O
an	O
analog	B-Device
stick	I-Device
must	O
establish	O
a	O
neutral	O
position	O
,	O
a	O
special	O
,	O
unique	O
position	O
which	O
the	O
stick	O
must	O
maintain	O
that	O
the	O
controller	O
would	O
interpret	O
as	O
an	O
intentional	O
cessation	O
or	O
absence	O
of	O
in-game	O
movement	O
.	O
</s>
<s>
If	O
the	O
analog	B-Device
stick	I-Device
is	O
moved	O
away	O
from	O
its	O
center	O
during	O
a	O
time	O
while	O
it	O
is	O
established	O
,	O
the	O
neutral	O
position	O
would	O
shift	O
to	O
some	O
place	O
away	O
from	O
the	O
center	O
of	O
the	O
stick	O
,	O
causing	O
the	O
controller	O
to	O
interpret	O
the	O
center	O
motionless	O
position	O
of	O
the	O
stick	O
as	O
in-game	O
movement	O
,	O
since	O
it	O
is	O
not	O
the	O
neutral	O
position	O
as	O
it	O
should	O
be	O
.	O
</s>
<s>
This	O
phenomenon	O
,	O
commonly	O
called	O
drifting	O
,	O
causes	O
undesired	O
gameplay	O
effects	O
,	O
depending	O
on	O
the	O
current	O
game	O
's	O
controls	O
,	O
such	O
as	O
constant	O
movement	O
of	O
the	O
player	O
character	O
in	O
a	O
single	O
direction	O
or	O
the	O
game	O
camera	O
being	O
skewed	O
towards	O
one	O
particular	O
angle	O
while	O
the	O
affected	O
stick	O
is	O
unmoved	O
,	O
and	O
can	O
only	O
be	O
corrected	O
by	O
performing	O
particular	O
actions	O
that	O
would	O
restore	O
the	O
affected	O
analog	B-Device
stick	I-Device
's	O
neutral	O
position	O
back	O
to	O
the	O
center	O
of	O
the	O
analog	B-Device
stick	I-Device
.	O
</s>
<s>
For	O
Nintendo	O
controllers	B-Device
with	O
analog	B-Device
sticks	I-Device
,	O
this	O
would	O
involve	O
holding	O
down	O
a	O
certain	O
combination	O
of	O
buttons	O
while	O
the	O
affected	O
analog	B-Device
sticks	I-Device
are	O
untouched	O
.	O
</s>
<s>
Shortly	O
after	O
the	O
introduction	O
of	O
the	O
first	O
microcomputers	B-Architecture
,	O
Cromemco	O
introduced	O
a	O
S-100	B-Architecture
bus	I-Architecture
card	O
containing	O
an	O
analog-to-digital	O
converter	O
,	O
and	O
shortly	O
after	O
,	O
a	O
card	O
with	O
two	O
of	O
these	O
and	O
an	O
associated	O
analog	B-Device
joystick	I-Device
,	O
the	O
JS-1	O
.	O
</s>
<s>
The	O
first	O
consumer	O
games	O
console	O
which	O
had	O
analog	B-Device
joysticks	I-Device
was	O
the	O
Prinztronic/Acetronic/Interton	B-Device
series	I-Device
,	O
launched	O
in	O
1978	O
.	O
</s>
<s>
The	O
2	O
sticks	O
each	O
used	O
a	O
pair	O
of	O
potentiometers	B-Device
,	O
they	O
were	O
not	O
self-centering	O
in	O
most	O
models	O
but	O
some	O
,	O
such	O
as	O
those	O
of	O
the	O
Interton	O
VC4000	O
models	O
did	O
self-center	O
.	O
</s>
<s>
When	O
the	O
Apple	B-Device
II	I-Device
was	O
released	O
,	O
it	O
shipped	O
with	O
an	O
analog	O
paddle	B-Device
controller	I-Device
as	O
a	O
standard	O
input	O
,	O
but	O
these	O
failed	O
to	O
meet	O
FCC	O
emissions	O
guidelines	O
and	O
Apple	O
Inc	O
was	O
forced	O
to	O
stop	O
selling	O
them	O
.	O
</s>
<s>
Not	O
long	O
after	O
,	O
these	O
same	O
companies	O
began	O
producing	O
analog	B-Device
joysticks	I-Device
for	O
the	O
system	O
,	O
but	O
these	O
took	O
some	O
time	O
to	O
become	O
popular	O
.	O
</s>
<s>
In	O
1982	O
,	O
Atari	O
released	O
a	O
controller	O
with	O
a	O
potentiometer-based	O
analog	B-Device
joystick	I-Device
for	O
their	O
Atari	B-General_Concept
5200	I-General_Concept
home	O
console	O
.	O
</s>
<s>
However	O
,	O
its	O
non-centering	O
joystick	B-Device
design	O
proved	O
to	O
be	O
ungainly	O
and	O
unreliable	O
due	O
to	O
the	O
filing	O
,	O
alienating	O
many	O
consumers	O
at	O
the	O
time	O
.	O
</s>
<s>
During	O
that	O
same	O
year	O
,	O
General	O
Consumer	O
Electronics	O
introduced	O
the	O
Vectrex	B-Operating_System
,	O
a	O
vector	O
graphics	O
based	O
system	O
which	O
used	O
a	O
self-centering	O
analog	O
thumbstick	B-Device
.	O
</s>
<s>
In	O
1985	O
,	O
Sega	O
's	O
third-person	O
rail	O
shooter	O
game	O
Space	B-Application
Harrier	I-Application
,	O
released	O
for	O
the	O
arcades	O
,	O
introduced	O
an	O
analog	O
flight	B-Device
stick	I-Device
for	O
movement	O
.	O
</s>
<s>
It	O
could	O
register	O
movement	O
in	O
any	O
direction	O
as	O
well	O
as	O
measure	O
the	O
degree	O
of	O
push	O
,	O
which	O
could	O
move	O
the	O
player	O
character	O
at	O
different	O
speeds	O
depending	O
on	O
how	O
far	O
the	O
joystick	B-Device
is	O
pushed	O
in	O
a	O
certain	O
direction	O
.	O
</s>
<s>
Sega	O
's	O
analog	O
Mission	O
Stick	O
was	O
released	O
for	O
the	O
Saturn	B-Device
console	O
on	O
September	O
29	O
,	O
1995	O
.	O
</s>
<s>
On	O
April	O
26	O
,	O
1996	O
,	O
Sony	O
released	O
a	O
potentiometer-based	O
analog	B-Device
joystick	I-Device
for	O
use	O
in	O
Flight-Simulation	O
games	O
.	O
</s>
<s>
The	O
Sony	O
Dual	B-Device
Analog	I-Device
FlightStick	B-Device
featured	O
twin	O
analog	B-Device
sticks	I-Device
and	O
was	O
used	O
in	O
games	O
such	O
as	O
Descent	B-Application
to	O
provide	O
a	O
much	O
greater	O
degree	O
of	O
freedom	O
than	O
the	O
typical	O
digital	O
joysticks	B-Device
of	O
the	O
day	O
.	O
</s>
<s>
The	O
NES	B-Device
max	I-Device
,	O
released	O
in	O
1988	O
,	O
is	O
the	O
first	O
instance	O
of	O
a	O
thumb	O
pad-based	O
joystick	B-Device
controller	O
.	O
</s>
<s>
The	O
Quickshot	O
Chimera	O
2	O
is	O
another	O
example	O
of	O
an	O
early	O
thumbstick	B-Device
controller	O
available	O
to	O
the	O
NES	O
.	O
</s>
<s>
In	O
1989	O
,	O
the	O
Japanese	O
company	O
Dempa	O
released	O
an	O
analog	O
thumbstick	B-Device
controller	O
called	O
the	O
XE-1	O
AP	O
for	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
(	O
Mega	B-Operating_System
Drive	I-Operating_System
)	O
console	O
and	O
several	O
Japanese	O
computers	O
.	O
</s>
<s>
It	O
was	O
intended	O
to	O
replicate	O
the	O
HOTAS	B-Algorithm
controls	O
found	O
in	O
Sega	O
’s	O
arcade	O
games	O
at	O
the	O
time	O
,	O
such	O
as	O
After	B-Device
Burner	I-Device
II	I-Device
.	O
</s>
<s>
This	O
controller	O
included	O
a	O
thumb-operated	O
control	B-Device
stick	I-Device
which	O
allowed	O
for	O
varying	O
levels	O
of	O
movement	O
and	O
near-360-degree	O
control	O
,	O
translating	O
into	O
far	O
more	O
precise	O
movements	O
than	O
were	O
possible	O
with	O
a	O
D-pad	B-Device
.	O
</s>
<s>
It	O
also	O
distinguished	O
itself	O
by	O
having	O
the	O
player	O
control	O
it	O
with	O
the	O
thumb	O
,	O
similar	O
to	O
a	O
D-pad	B-Device
,	O
rather	O
than	O
gripping	O
a	O
handle	O
.	O
</s>
<s>
A	O
few	O
games	O
on	O
the	O
Genesis	O
(	O
as	O
well	O
as	O
the	O
Sega	B-Device
CD	I-Device
and	O
32X	B-Device
)	O
supported	O
the	O
controller	O
’s	O
analog	B-Device
stick	I-Device
functions	O
,	O
which	O
also	O
includes	O
Sega	O
’s	O
first-party	O
games	O
for	O
the	O
system	O
.	O
</s>
<s>
Initially	O
announced	O
in	O
late	O
1995	O
,	O
Nintendo	O
released	O
their	O
Nintendo	B-Device
64	I-Device
controller	I-Device
on	O
June	O
23	O
,	O
1996	O
,	O
in	O
Japan	O
.	O
</s>
<s>
The	O
new	O
controller	O
included	O
a	O
thumb-operated	O
control	B-Device
stick	I-Device
which	O
,	O
while	O
a	O
digital	O
stick	O
(	O
the	O
analog	B-Device
stick	I-Device
operated	O
on	O
the	O
same	O
principles	O
as	O
a	O
mechanical	O
ball-type	O
computer	O
mouse	O
)	O
,	O
still	O
allowed	O
for	O
varying	O
levels	O
of	O
movement	O
and	O
near-360-degree	O
control	O
,	O
translating	O
into	O
far	O
more	O
precise	O
movements	O
than	O
were	O
possible	O
with	O
a	O
D-pad	B-Device
.	O
</s>
<s>
For	O
three	O
generations	O
,	O
Nintendo	O
's	O
control	B-Device
stick	I-Device
was	O
distinguished	O
from	O
analog	B-Device
sticks	I-Device
used	O
in	O
other	O
major	O
consoles	O
by	O
its	O
surrounding	O
octagonal	O
area	O
of	O
freedom	O
that	O
only	O
allowed	O
it	O
to	O
be	O
moved	O
in	O
any	O
of	O
eight	O
different	O
directions	O
,	O
with	O
each	O
one	O
assigned	O
to	O
each	O
of	O
the	O
octagon	O
's	O
eight	O
vertices	O
where	O
the	O
control	B-Device
stick	I-Device
could	O
be	O
pushed	O
towards	O
.	O
</s>
<s>
Nintendo	O
would	O
eventually	O
change	O
this	O
octagonal	O
area	O
to	O
the	O
circle	O
widely	O
used	O
in	O
other	O
console	O
controllers	B-Device
during	O
the	O
eighth	B-Application
generation	I-Application
starting	O
with	O
the	O
Nintendo	B-Operating_System
3DS	I-Operating_System
and	O
Wii	B-Device
U	I-Device
,	O
to	O
allow	O
for	O
many	O
more	O
different	O
movement	O
directions	O
beyond	O
these	O
eight	O
.	O
</s>
<s>
On	O
July	O
5	O
,	O
1996	O
,	O
Sega	O
released	O
Nights	B-Application
into	I-Application
Dreams	I-Application
...	I-Application
for	O
their	O
Saturn	B-Device
console	O
in	O
Japan	O
;	O
bundled	O
with	O
it	O
was	O
the	O
Saturn	B-Device
3D	O
control	B-Device
pad	I-Device
which	O
featured	O
an	O
analog	O
pad	O
intended	O
to	O
give	O
the	O
player	O
more	O
fluid	O
control	O
over	O
that	O
game	O
's	O
flight-based	O
gameplay	O
.	O
</s>
<s>
The	O
analog	O
pad	O
used	O
magnet-based	O
Hall	B-Algorithm
effect	I-Algorithm
sensors	I-Algorithm
,	O
which	O
was	O
a	O
unique	O
implementation	O
of	O
the	O
technology	O
that	O
was	O
carried	O
forward	O
into	O
the	O
design	O
of	O
the	B-Operating_System
Dreamcast	I-Operating_System
controller	O
as	O
well	O
.	O
</s>
<s>
The	O
Saturn	B-Device
's	O
analog	O
controller	O
was	O
previously	O
mentioned	O
in	O
the	O
June	O
1996	O
issue	O
of	O
Computer	O
and	O
Video	O
Games	O
magazine	O
.	O
</s>
<s>
On	O
April	O
25	O
,	O
1997	O
,	O
Sony	O
introduced	O
the	O
world	O
's	O
first	O
dual	O
stick	O
controller	O
for	O
its	O
game	O
console	O
,	O
PlayStation	B-Device
.	O
</s>
<s>
Based	O
on	O
the	O
same	O
potentiometer	B-Device
technology	O
that	O
was	O
used	O
in	O
the	O
larger	O
Dual	B-Device
Analog	I-Device
Flightstick	B-Device
,	O
the	O
Sony	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
featured	O
rumble	O
(	O
removed	O
in	O
overseas	O
versions	O
)	O
,	O
three	O
modes	O
of	O
analog	O
(	O
Flightstick	B-Device
,	O
Full	O
Analog	O
and	O
Analog-Off	O
)	O
,	O
and	O
dual	O
plastic	O
concave	O
thumbsticks	B-Device
.	O
</s>
<s>
It	O
also	O
added	O
two	O
new	O
buttons	O
,	O
L3	O
and	O
R3	O
,	O
under	O
the	O
thumbsticks	B-Device
,	O
which	O
could	O
be	O
used	O
by	O
pressing	O
down	O
on	O
the	O
sticks	O
.	O
</s>
<s>
The	O
controller	O
featured	O
similar	O
twin	O
analog	B-Device
sticks	I-Device
to	O
the	O
Dual	B-Device
Analog	I-Device
,	O
although	O
they	O
featured	O
convex	O
rubber	O
tips	O
rather	O
than	O
concave	O
plastic	O
ones	O
.	O
</s>
<s>
It	O
also	O
removed	O
the	O
third	O
analog	O
(	O
Flightstick	B-Device
)	O
mode	O
and	O
added	O
two	O
rumble	O
motors	O
.	O
</s>
<s>
In	O
1999	O
,	O
Sony	O
's	O
Ape	B-Application
Escape	I-Application
became	O
the	O
first	O
video	O
game	O
in	O
history	O
to	O
require	O
the	O
use	O
of	O
two	O
analog	B-Device
sticks	I-Device
.	O
</s>
<s>
In	O
the	O
console	O
generations	O
that	O
followed	O
,	O
many	O
video	B-Device
game	I-Device
console	I-Device
controllers	B-Device
have	O
included	O
two	O
analog	B-Device
sticks	I-Device
,	O
with	O
the	O
exception	O
of	O
the	O
Sega	B-Operating_System
Dreamcast	I-Operating_System
controller	O
and	O
Nintendo	B-Operating_System
's	I-Operating_System
Wii	I-Operating_System
Remote	O
controller	O
.	O
</s>
<s>
Other	O
exceptions	O
to	O
this	O
dual-stick	O
rule	O
are	O
Sony	B-Operating_System
's	I-Operating_System
PlayStation	I-Operating_System
Portable	I-Operating_System
and	O
Nintendo	O
's	O
3DS	B-Operating_System
handheld	B-Application
game	I-Application
consoles	I-Application
aside	O
from	O
the	O
New	B-Device
3DS	I-Device
(	O
although	O
the	O
latter	O
may	O
be	O
upgraded	O
to	O
dual-stick	O
functionality	O
through	O
the	O
use	O
of	O
an	O
accessory	O
)	O
,	O
which	O
both	O
feature	O
only	O
a	O
single	O
small	O
,	O
flat	O
sliding	O
analog	O
"	O
nub	O
"	O
.	O
</s>
<s>
However	O
,	O
Sony	O
's	O
PlayStation	B-Device
Vita	I-Device
does	O
have	O
a	O
dual	B-Device
analog	I-Device
stick	O
configuration	O
.	O
</s>
