<s>
The	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
(	O
SCPH-1150	O
in	O
Japan	O
,	O
SCPH-1180	O
in	O
the	O
United	O
States	O
,	O
and	O
SCPH-1180e	O
in	O
Europe	O
)	O
is	O
Sony	O
's	O
first	O
handheld	O
analog	O
controller	O
for	O
the	O
PlayStation	B-Device
,	O
and	O
the	O
predecessor	O
to	O
the	O
DualShock	B-Device
.	O
</s>
<s>
Its	O
first	O
official	O
analog	O
controller	O
was	O
the	O
PlayStation	B-Device
Analog	I-Device
Joystick	I-Device
(	O
SCPH-1110	O
)	O
.	O
</s>
<s>
The	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
was	O
first	O
displayed	O
under	O
glass	O
at	O
the	O
PlayStation	B-Device
Expo	O
96	O
–	O
97	O
,	O
which	O
was	O
held	O
from	O
1	O
November	O
to	O
4	O
November	O
1996	O
.	O
</s>
<s>
It	O
was	O
released	O
in	O
Japan	O
in	O
April	O
1997	O
,	O
coincident	O
with	O
the	O
Japanese	O
releases	O
of	O
analog-capable	O
titles	O
Tobal	B-Application
2	I-Application
and	O
Bushido	B-Application
Blade	I-Application
.	O
</s>
<s>
There	O
were	O
rumors	O
that	O
Nintendo	O
had	O
attempted	O
to	O
legally	O
block	O
the	O
release	O
of	O
the	O
controller	O
in	O
North	O
America	O
due	O
to	O
the	O
vibration	O
feature	O
's	O
similarity	O
to	O
Nintendo	O
's	O
Rumble	B-Device
Pak	I-Device
,	O
but	O
Nintendo	O
firmly	O
denied	O
that	O
it	O
had	O
taken	O
any	O
form	O
of	O
legal	O
action	O
over	O
Sony	O
's	O
controllers	O
.	O
</s>
<s>
A	O
few	O
months	O
later	O
,	O
the	O
first	O
DualShock	B-Device
controller	O
was	O
released	O
in	O
Japan	O
on	O
20	O
November	O
1997	O
.	O
</s>
<s>
Namco	O
had	O
already	O
released	O
an	O
analog	O
controller	O
for	O
PlayStation	B-Device
called	O
NeGcon	B-Device
.	O
</s>
<s>
Sony	O
's	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
's	O
analog	O
mode	O
was	O
not	O
compatible	O
with	O
the	O
NeGcon-compatible	O
games	O
such	O
as	O
Wipeout	B-Application
and	O
Ridge	B-Application
Racer	I-Application
.	O
</s>
<s>
However	O
,	O
Need	B-Device
for	I-Device
Speed	I-Device
II	I-Device
,	O
Gran	B-Application
Turismo	I-Application
,	O
and	O
Gran	B-Application
Turismo	I-Application
2	I-Application
feature	O
compatibility	O
with	O
both	O
NeGcon	B-Device
and	O
Dual	B-Device
Analog	I-Device
control	O
schemes	O
.	O
</s>
<s>
This	O
redesign	O
eventually	O
became	O
the	O
DualShock	B-Device
.	O
</s>
<s>
The	O
Dual	B-Device
Analog	I-Device
controller	I-Device
was	O
discontinued	O
in	O
all	O
three	O
markets	O
in	O
1998	O
,	O
to	O
be	O
replaced	O
by	O
the	O
DualShock	B-Device
.	O
</s>
<s>
The	O
Dual	B-Device
Analog	I-Device
controller	I-Device
has	O
three	O
modes	O
of	O
operation	O
:	O
Digital	O
,	O
which	O
disables	O
the	O
Analog	B-Device
sticks	I-Device
,	O
Analog	O
(	O
as	O
also	O
found	O
on	O
DualShock/DualShock	B-Device
2	I-Device
controllers	O
)	O
and	O
an	O
Analog	O
Flightstick	O
mode	O
emulating	O
the	O
PlayStation	B-Device
Analog	I-Device
Joystick	I-Device
that	O
is	O
not	O
available	O
on	O
the	O
DualShock	B-Device
or	O
DualShock	B-Device
2	O
.	O
</s>
<s>
If	O
a	O
PlayStation	B-Device
game	O
is	O
DualShock	B-Device
or	O
Dual	B-Device
Analog	I-Device
compatible	O
,	O
the	O
player	O
may	O
press	O
the	O
Analog	O
button	O
located	O
between	O
the	O
two	O
analog	B-Device
sticks	I-Device
to	O
activate	O
the	O
analog	O
mode	O
.	O
</s>
<s>
If	O
the	O
Dual	B-Device
Analog	I-Device
controller	I-Device
is	O
switched	O
to	O
analog	O
mode	O
while	O
using	O
a	O
game	O
which	O
is	O
not	O
analog-compatible	O
,	O
the	O
game	O
will	O
not	O
register	O
any	O
button	O
presses	O
or	O
,	O
in	O
some	O
cases	O
,	O
the	O
game	O
will	O
consider	O
the	O
controller	O
to	O
be	O
detached	O
,	O
this	O
in	O
part	O
due	O
to	O
the	O
fact	O
the	O
controller	O
's	O
type	O
ID	O
that	O
is	O
reported	O
to	O
the	O
game	O
is	O
changed	O
when	O
the	O
button	O
is	O
pressed	O
.	O
</s>
<s>
The	O
ability	O
to	O
emulate	O
Sony	O
's	O
own	O
PlayStation	B-Device
Analog	I-Device
Joystick	I-Device
by	O
pressing	O
the	O
"	O
Analog	O
"	O
button	O
a	O
second	O
time	O
to	O
reveal	O
a	O
green	O
LED	O
(	O
this	O
was	O
commonly	O
referred	O
to	O
as	O
"	O
Flightstick	O
Mode	O
"	O
)	O
provided	O
a	O
less	O
expensive	O
alternative	O
to	O
the	O
FlightStick	O
Analog	O
Joystick	O
and	O
retailed	O
for	O
an	O
average	O
of	O
US$35	O
compared	O
to	O
the	O
Flightstick	O
's	O
retail	O
price	O
of	O
US$70	O
.	O
</s>
<s>
Similarly	O
to	O
the	O
Nintendo	B-Device
64	I-Device
controller	I-Device
,	O
the	O
Dual	B-Device
Analog	I-Device
Controller	I-Device
was	O
designed	O
to	O
be	O
held	O
in	O
four	O
different	O
ways	O
:	O
standard	O
control	O
,	O
in	O
which	O
the	O
left	O
thumb	O
uses	O
the	O
directional	O
buttons	O
and	O
the	O
right	O
thumb	O
uses	O
the	O
action	B-Device
buttons	I-Device
;	O
analog	O
control	O
,	O
in	O
which	O
the	O
left	O
thumb	O
uses	O
the	O
left	O
analog	B-Device
stick	I-Device
and	O
the	O
right	O
thumb	O
uses	O
the	O
action	B-Device
buttons	I-Device
;	O
dual	B-Device
analog	I-Device
control	O
,	O
which	O
imitates	O
the	O
Dual	B-Device
Analog	I-Device
Joystick	O
,	O
with	O
both	O
thumbs	O
positioned	O
over	O
the	O
analog	B-Device
sticks	I-Device
,	O
and	O
the	O
shoulder	O
buttons	O
used	O
instead	O
of	O
the	O
action	B-Device
buttons	I-Device
;	O
and	O
analog-digital	O
control	O
,	O
in	O
which	O
the	O
left	O
thumb	O
uses	O
the	O
directional	O
buttons	O
,	O
the	O
right	O
thumb	O
uses	O
the	O
right	O
analog	B-Device
stick	I-Device
,	O
and	O
the	O
shoulder	O
buttons	O
are	O
again	O
used	O
for	O
actions	O
.	O
</s>
<s>
MechWarrior	B-Application
2	I-Application
,	O
Ace	B-Application
Combat	I-Application
2	I-Application
,	O
Descent	B-Application
Maximum	I-Application
,	O
and	O
Colony	B-Application
Wars	I-Application
were	O
among	O
the	O
shortlist	O
of	O
twenty-seven	O
PlayStation	B-Device
Flightstick	O
compatible	O
games	O
.	O
</s>
<s>
The	O
Dual	B-Device
Analog	I-Device
controller	I-Device
features	O
several	O
aspects	O
that	O
remain	O
exclusive	O
to	O
it	O
,	O
and	O
were	O
scrapped	O
or	O
redesigned	O
for	O
the	O
release	O
of	O
the	O
DualShock	B-Device
controller	O
.	O
</s>
<s>
Due	O
to	O
a	O
lack	O
of	O
vibration-compatible	O
games	O
at	O
the	O
time	O
,	O
the	O
European	O
and	O
American	O
versions	O
were	O
not	O
shipped	O
with	O
rumble	O
feedback	O
and	O
,	O
as	O
a	O
result	O
,	O
weigh	O
significantly	O
less	O
than	O
their	O
overseas	O
counterpart	O
,	O
and	O
fall	O
somewhere	O
between	O
the	O
weights	O
of	O
the	O
standard	O
controller	O
and	O
the	O
DualShock	B-Device
.	O
</s>
<s>
The	O
hand	O
grips	O
are	O
longer	O
than	O
the	O
original	O
controller	O
and	O
the	O
later	O
DualShock	B-Device
controller	O
.	O
</s>
<s>
This	O
wider	O
controller	O
body	O
has	O
been	O
retained	O
on	O
the	O
DualShock	B-Device
and	O
all	O
later	O
PlayStation	B-Device
controllers	I-Device
.	O
</s>
<s>
The	O
L2	O
and	O
R2	O
buttons	O
have	O
ridges	O
at	O
the	O
top	O
edge	O
to	O
easily	O
distinguish	O
them	O
from	O
the	O
L1	O
and	O
R1	O
buttons	O
and	O
are	O
spaced	O
farther	O
apart	O
than	O
the	O
original	O
controller	O
or	O
DualShock	B-Device
.	O
</s>
<s>
The	O
L2	O
and	O
R2	O
buttons	O
are	O
also	O
wider	O
than	O
the	O
standard	O
controller	O
but	O
shorter	O
than	O
the	O
DualShock	B-Device
.	O
</s>
<s>
The	O
analog	B-Device
sticks	I-Device
are	O
concave	O
and	O
lack	O
the	O
rubberised	O
coating	O
that	O
has	O
been	O
used	O
on	O
the	O
DualShock	B-Device
and	O
later	O
controllers	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
standard	O
digital	O
mode	O
and	O
the	O
regular	O
"	O
red	O
LED	O
"	O
Analog	O
mode	O
,	O
there	O
is	O
a	O
third	O
mode	O
that	O
emulates	O
the	O
layout	O
of	O
Sony	O
's	O
own	O
PlayStation	B-Device
Analog	I-Device
Joystick	I-Device
,	O
and	O
is	O
indicated	O
by	O
a	O
green	O
LED	O
.	O
</s>
<s>
This	O
feature	O
is	O
missing	O
on	O
the	O
DualShock	B-Device
.	O
</s>
<s>
The	O
"	O
Analog	O
"	O
button	O
,	O
used	O
for	O
switching	O
modes	O
,	O
is	O
raised	O
instead	O
of	O
recessed	O
like	O
the	O
DualShock	B-Device
's	O
button	O
and	O
can	O
be	O
more	O
easily	O
hit	O
accidentally	O
.	O
</s>
<s>
The	O
Analog	O
mode	O
cannot	O
be	O
changed	O
or	O
locked	O
by	O
software	O
as	O
it	O
can	O
with	O
the	O
DualShock	B-Device
controller	O
and	O
later	O
.	O
</s>
<s>
The	O
Dual	B-Device
Analog	I-Device
's	O
rumble	O
circuit	O
will	O
not	O
respond	O
to	O
PlayStation	B-Device
2	O
software	O
even	O
if	O
a	O
rumble	O
motor	O
is	O
installed	O
.	O
</s>
