<s>
is	O
a	O
1998	O
Japanese	O
Sega	O
Model	O
3	O
arcade	O
action	B-Application
game	I-Application
that	O
was	O
later	O
ported	O
to	O
the	O
Sega	O
NAOMI	O
arcades	O
and	O
the	B-Operating_System
Dreamcast	I-Operating_System
home	O
console	O
in	O
Japan	O
in	O
1999	O
and	O
North	O
America	O
in	O
2000	O
.	O
</s>
<s>
Oratorio	O
Tangram	O
is	O
a	O
3D	O
fighting	O
game	O
where	O
the	O
player	O
assumes	O
control	O
of	O
a	O
giant	O
humanoid	O
robot	O
,	O
and	O
is	O
a	O
sequel	O
to	O
the	O
1996	O
video	O
game	O
Virtual	B-Application
On	I-Application
:	I-Application
Cyber	I-Application
Troopers	I-Application
.	O
</s>
<s>
A	O
re-release	O
of	O
the	O
game	O
,	O
entitled	O
,	O
was	O
released	O
worldwide	O
for	O
Xbox	B-Operating_System
360	I-Operating_System
on	O
April	O
29	O
,	O
2009	O
.	O
</s>
<s>
The	B-Operating_System
Dreamcast	I-Operating_System
version	O
received	O
favorable	O
reviews	O
,	O
while	O
Ver.5.66	O
received	O
"	O
average	O
"	O
reviews	O
,	O
according	O
to	O
the	O
review	B-Application
aggregation	I-Application
websites	O
GameRankings	O
and	O
Metacritic	O
.	O
</s>
<s>
Stephen	O
Frost	O
of	O
NextGen	O
called	O
the	O
Japanese	O
import	O
of	O
the	O
former	O
console	O
version	O
"	O
an	O
impressive	O
game	O
,	O
and	O
practically	O
a	O
perfect	O
conversion	O
,	O
marred	O
by	O
difficult	O
controls	O
and	O
a	O
lack	O
of	O
'	O
compatibility	O
 '	O
with	O
the	O
standard	O
Dreamcast	B-Operating_System
controller	O
.	O
</s>
<s>
However	O
,	O
if	O
you	O
're	O
willing	O
to	O
invest	O
the	O
necessary	O
time	O
,	O
you	O
'll	O
eventually	O
discover	O
that	O
the	O
game	O
provides	O
one	O
of	O
the	O
most	O
addictive	O
and	O
deep	O
gaming	O
experiences	O
currently	O
available	O
on	O
Dreamcast.	O
"	O
</s>
<s>
In	O
Japan	O
,	O
Famitsu	O
gave	O
the	O
same	O
Dreamcast	B-Operating_System
version	O
a	O
score	O
of	O
three	O
tens	O
and	O
one	O
nine	O
for	O
a	O
total	O
of	O
39	O
out	O
of	O
40	O
.	O
</s>
<s>
GameSpot	O
gave	O
the	O
same	O
arcade	O
version	O
seven	O
out	O
of	O
ten	O
and	O
said	O
,	O
"	O
Provided	O
you	O
can	O
get	O
the	O
twin	O
sticks	O
,	O
Virtual	B-Application
On	I-Application
:	O
Oratorio	O
Tangram	O
is	O
a	O
must-buy	O
.	O
</s>
