<s>
Bookworm	B-Operating_System
is	O
a	O
word-forming	O
puzzle	O
video	O
game	O
by	O
PopCap	O
Games	O
.	O
</s>
<s>
In	O
November	O
2006	O
,	O
PopCap	O
Games	O
released	O
a	O
sequel	O
,	O
Bookworm	B-Application
Adventures	I-Application
.	O
</s>
<s>
Bookworm	B-Operating_System
was	O
released	O
for	O
the	O
Nintendo	B-Device
DS	I-Device
digital	O
distribution	O
service	O
DSiWare	B-Device
on	O
November	O
30	O
,	O
2009	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
released	O
on	O
the	O
regular	O
Nintendo	B-Device
DS	I-Device
cartridge	B-Protocol
.	O
</s>
<s>
The	O
editors	O
of	O
Computer	O
Gaming	O
World	O
presented	O
Bookworm	B-Operating_System
with	O
their	O
2003	O
"	O
Puzzle	O
Game	O
of	O
the	O
Year	O
"	O
award	O
.	O
</s>
<s>
It	O
's	O
something	O
commercial	O
games	O
with	O
50	O
times	O
the	O
budget	O
(	O
hey	O
,	O
Deus	B-Application
Ex	I-Application
2	I-Application
!	O
)	O
</s>
