<s>
Silhouette	B-Application
Mirage	I-Application
is	O
a	O
2D	O
action	B-Application
side-scrolling	O
video	O
game	O
developed	O
by	O
Treasure	O
and	O
released	O
in	O
1997	O
.	O
</s>
<s>
It	O
was	O
first	O
published	O
by	O
ESP	O
for	O
the	O
Sega	B-Device
Saturn	I-Device
in	O
1997	O
in	O
Japan	O
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
the	O
PlayStation	B-Device
in	O
1998	O
.	O
</s>
<s>
In	O
2000	O
,	O
Working	O
Designs	O
translated	O
,	O
made	O
significant	O
alterations	O
to	O
,	O
and	O
published	O
the	O
game	O
for	O
the	O
PlayStation	B-Device
in	O
North	O
America	O
.	O
</s>
<s>
Silhouette	B-Application
Mirage	I-Application
is	O
an	O
action	B-Application
side-scroller	O
and	O
features	O
seven	O
levels	O
presented	O
in	O
a	O
2D	O
view	O
.	O
</s>
<s>
Silhouette	B-Application
Mirage	I-Application
was	O
developed	O
by	O
Japanese	O
video	O
game	O
developer	O
Treasure	O
,	O
who	O
had	O
previously	O
developed	O
games	O
such	O
as	O
Mischief	B-Application
Makers	I-Application
and	O
Gunstar	B-Application
Heroes	I-Application
.	O
</s>
<s>
At	O
the	O
time	O
the	O
developer	O
was	O
shifting	O
their	O
focus	O
to	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
and	O
PlayStation	B-Device
,	O
and	O
announced	O
that	O
Silhouette	B-Application
Mirage	I-Application
would	O
be	O
their	O
final	O
game	O
for	O
the	O
Sega	B-Device
Saturn	I-Device
.	O
</s>
<s>
In	O
actuality	O
,	O
Treasure	O
would	O
go	O
on	O
to	O
make	O
one	O
further	O
Saturn	B-Device
game	O
,	O
Radiant	B-Application
Silvergun	I-Application
.	O
</s>
<s>
According	O
to	O
director	O
Masaki	O
Ukyo	O
,	O
the	O
original	O
concept	O
was	O
to	O
incorporate	O
the	O
idea	O
of	O
two	O
different	O
attributes	O
to	O
make	O
a	O
unique	O
action	B-Application
game	I-Application
,	O
and	O
that	O
other	O
concepts	O
such	O
as	O
grabbing	O
,	O
throwing	O
and	O
"	O
Cash	O
Bash	O
"	O
were	O
added	O
later	O
in	O
development	O
simply	O
because	O
they	O
felt	O
they	O
had	O
many	O
ideas	O
that	O
they	O
liked	O
and	O
wanted	O
to	O
add	O
them	O
all	O
.	O
</s>
<s>
The	O
gameplay	O
mechanic	O
of	O
the	O
player	O
's	O
power	O
dropping	O
if	O
the	O
spirit	O
gauge	O
falls	O
was	O
added	O
near	O
the	O
end	O
of	O
development	O
,	O
and	O
was	O
based	O
on	O
a	O
system	O
Treasure	O
used	O
in	O
Guardian	B-Application
Heroes	I-Application
(	O
1996	O
)	O
.	O
</s>
<s>
Treasure	O
re-used	O
the	O
dual	O
attribute	O
damage	O
mechanic	O
of	O
Silhouette	B-Application
Mirage	I-Application
in	O
their	O
shoot	O
'	O
em	O
up	O
game	O
Ikaruga	B-Application
(	O
2001	O
)	O
.	O
</s>
<s>
In	O
Ikaruga	B-Application
,	O
the	O
concept	O
of	O
attributes	O
is	O
known	O
as	O
polarity	O
which	O
manifests	O
as	O
the	O
player	O
's	O
ship	O
being	O
either	O
black	O
or	O
white	O
.	O
</s>
<s>
Similarly	O
with	O
Silhouette	B-Application
Mirage	I-Application
,	O
damage	O
can	O
only	O
be	O
done	O
to	O
the	O
player	O
or	O
enemies	O
by	O
projectiles	O
of	O
the	O
opposite	O
attribute	O
.	O
</s>
<s>
While	O
Shyna	O
changes	O
attributes	O
by	O
facing	O
in	O
different	O
directions	O
,	O
the	O
ship	O
in	O
Ikaruga	B-Application
changes	O
attributes	O
with	O
a	O
button	O
press	O
.	O
</s>
<s>
Silhouette	B-Application
Mirage	I-Application
was	O
released	O
in	O
Japan	O
on	O
the	O
Sega	B-Device
Saturn	I-Device
on	O
September	O
10	O
,	O
1997	O
and	O
published	O
by	O
ESP	O
.	O
</s>
<s>
Sega	O
,	O
which	O
had	O
published	O
Treasure	O
's	O
previous	O
Saturn	B-Device
game	O
,	O
Guardian	B-Application
Heroes	I-Application
,	O
expressed	O
a	O
lack	O
of	O
interest	O
in	O
releasing	O
the	O
game	O
in	O
the	O
West	O
.	O
</s>
<s>
The	O
game	O
was	O
ported	O
to	O
the	O
PlayStation	B-Device
as	O
Silhouette	B-Application
Mirage	I-Application
:	O
Reprogrammed	O
Hope	O
in	O
Japan	O
on	O
July	O
23	O
,	O
1998	O
.	O
</s>
<s>
Treasure	O
handled	O
the	O
port	O
completely	O
in	O
house	O
with	O
a	O
small	O
team	O
,	O
including	O
the	O
difficult	O
adaption	O
of	O
the	O
2D	O
view	O
into	O
the	O
PlayStation	B-Device
format	O
.	O
</s>
<s>
For	O
the	O
PlayStation	B-Device
version	O
,	O
the	O
soundtrack	O
was	O
trimmed	O
with	O
the	O
training	O
music	O
being	O
replaced	O
and	O
a	O
few	O
minor	O
background	O
elements	O
were	O
simplified	O
or	O
removed	O
.	O
</s>
<s>
The	O
Reaper	O
and	O
Geluve	O
bosses	O
are	O
exclusive	O
to	O
the	O
PlayStation	B-Device
version	O
.	O
</s>
<s>
Several	O
background	O
and	O
animations	O
from	O
the	O
Saturn	B-Device
version	O
were	O
removed	O
in	O
the	O
PlayStation	B-Device
version	O
.	O
</s>
<s>
This	O
version	O
was	O
released	O
as	O
a	O
PS	B-Application
one	I-Application
Classic	I-Application
on	O
the	O
Japanese	O
PlayStation	B-Device
Network	I-Device
on	O
August	O
25	O
,	O
2010	O
.	O
</s>
<s>
American	O
publisher	O
Working	O
Designs	O
localized	O
the	O
PlayStation	B-Device
version	O
for	O
North	O
America	O
and	O
made	O
further	O
alterations	O
.	O
</s>
<s>
A	O
preview	O
video	O
for	O
Lunar	B-Application
2	I-Application
:	I-Application
Eternal	I-Application
Blue	I-Application
,	O
another	O
game	O
localized	O
by	O
Working	O
Designs	O
,	O
was	O
also	O
added	O
to	O
the	O
game	O
.	O
</s>
<s>
Upon	O
release	O
,	O
Silhouette	B-Application
Mirage	I-Application
received	O
positive	O
reviews	O
.	O
</s>
<s>
Next	O
Generation	O
noted	O
that	O
the	O
release	O
of	O
Silhouette	B-Application
Mirage	I-Application
showcased	O
that	O
Treasure	O
was	O
continuing	O
to	O
innovate	O
within	O
the	O
bounds	O
of	O
an	O
outdated	O
video	O
game	O
genre	O
.	O
</s>
<s>
Critical	O
opinion	O
on	O
the	O
PlayStation	B-Device
version	O
of	O
the	O
game	O
was	O
more	O
divided	O
.	O
</s>
<s>
The	O
PlayStation	B-Device
release	O
received	O
average	O
reviews	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
website	O
Metacritic	O
.	O
</s>
<s>
German	O
magazine	O
Mega	O
Fun	O
reviewed	O
the	O
Japanese	O
version	O
of	O
the	O
game	O
,	O
saying	O
the	O
action	B-Application
is	O
slow	O
and	O
battles	O
are	O
not	O
fun	O
.	O
</s>
<s>
GameSpots	O
review	O
focused	O
on	O
the	O
differences	O
between	O
the	O
Saturn	B-Device
and	O
PlayStation	B-Device
releases	O
,	O
mentioning	O
the	O
"	O
inflated	O
weapon	O
cost	O
"	O
and	O
the	O
mechanic	O
involving	O
draining	O
enemies	O
 '	O
spirits	O
,	O
which	O
they	O
stated	O
is	O
"	O
the	O
biggest	O
flaw	O
in	O
the	O
game	O
"	O
.	O
</s>
<s>
They	O
went	O
as	O
far	O
as	O
to	O
recommend	O
importing	O
the	O
original	O
Saturn	B-Device
release	O
because	O
"	O
a	O
perfectly	O
fun	O
game	O
is	O
now	O
an	O
unrewarding	O
chore	O
overwrought	O
with	O
tedium	O
"	O
.	O
</s>
<s>
In	O
contrast	O
,	O
another	O
reviewer	O
in	O
Gamers	O
 '	O
Republic	O
praised	O
the	O
North	O
American	O
version	O
,	O
specifically	O
the	O
translation	O
of	O
Working	O
Designs	O
,	O
saying	O
it	O
is	O
"	O
amazingly	O
religious	O
"	O
compared	O
to	O
the	O
Sega	B-Device
Saturn	I-Device
version	O
.	O
</s>
<s>
In	O
2015	O
,	O
a	O
panel	O
of	O
writers	O
by	O
Dengeki	O
Online	O
listed	O
the	O
game	O
as	O
one	O
of	O
the	O
masterpieces	O
for	O
the	O
Sega	B-Device
Saturn	I-Device
with	O
one	O
writer	O
saying	O
it	O
was	O
their	O
favorite	O
game	O
by	O
Treasure	O
for	O
the	O
system	O
,	O
above	O
Guardian	B-Application
Heroes	I-Application
and	O
Radiant	B-Application
Silvergun	I-Application
.	O
</s>
