<s>
Crazy	B-Application
Planets	I-Application
was	O
a	O
game	O
created	O
by	O
Playfish	O
on	O
the	B-Application
Facebook	I-Application
platform	O
.	O
</s>
<s>
It	O
was	O
available	O
for	O
some	O
time	O
but	O
then	O
was	O
disconnected	O
from	O
Facebook	B-Application
for	O
revisions	O
.	O
</s>
<s>
Crazy	B-Application
Planets	I-Application
uses	O
a	O
micropayments	O
model	O
,	O
in	O
which	O
players	O
can	O
purchase	O
Playfish	O
Cash	O
to	O
buy	O
virtual	O
goods	O
in	O
the	O
game	O
.	O
</s>
<s>
Crazy	B-Application
Planets	I-Application
is	O
an	O
artillery	B-Application
game	I-Application
which	O
uses	O
Facebook	B-Application
's	O
social	O
networking	O
to	O
establish	O
multiplayer	O
games	O
.	O
</s>
<s>
VentureBeat	O
criticized	O
the	O
lack	O
of	O
participation	O
from	O
other	O
Facebook	B-Application
users	I-Application
and	O
the	O
inability	O
to	O
upgrade	O
weapons	O
quickly	O
without	O
resorting	O
to	O
micropayments	O
.	O
</s>
<s>
The	O
difficulty	O
curve	O
was	O
considered	O
a	O
problem	O
,	O
with	O
"	O
boring	O
"	O
grinding	B-Application
required	O
to	O
progress	O
at	O
some	O
points	O
.	O
</s>
<s>
Overall	O
,	O
Crazy	B-Application
Planets	I-Application
was	O
deemed	O
adequate	O
,	O
but	O
did	O
not	O
compare	O
favourably	O
with	O
the	O
Worms	B-Application
franchise	O
.	O
</s>
<s>
IGN	O
said	O
that	O
"	O
It	O
is	O
n't	O
anything	O
like	O
the	O
company	O
's	O
other	O
games	O
"	O
and	O
affirmed	O
that	O
cropping	O
Facebook	B-Application
profile	O
image	O
onto	O
the	O
face	O
of	O
your	O
spacemen	O
"	O
sounds	O
very	O
simple	O
in	O
concept	O
,	O
but	O
it	O
's	O
actually	O
quite	O
funny	O
to	O
witness	O
in	O
game	O
"	O
.	O
</s>
<s>
Adweek	O
said	O
that	O
"	O
it	O
’s	O
not	O
as	O
in	O
depth	O
as	O
the	O
original	O
Worms	B-Application
games	O
,	O
but	O
it	O
does	O
have	O
that	O
pleasant	O
feel	O
"	O
and	O
praise	O
the	O
game	O
for	O
utilizing	O
the	O
basic	O
concept	O
and	O
applied	O
it	O
in	O
a	O
unique	O
way	O
.	O
</s>
