<s>
Crystal	B-Operating_System
Crazy	I-Operating_System
is	O
an	O
action	B-Application
game	I-Application
,	O
published	O
by	O
Casady	O
&	O
Greene	O
for	O
the	O
Classic	B-Application
Mac	I-Application
OS	I-Application
in	O
1993	O
.	O
</s>
<s>
It	O
is	O
the	O
sequel	O
to	O
Crystal	B-Device
Quest	I-Device
.	O
</s>
<s>
Unlike	O
Crystal	B-Device
Quest	I-Device
,	O
which	O
included	O
a	O
"	O
Critter	O
Editor	O
,	O
"	O
Crystal	B-Operating_System
Crazy	I-Operating_System
has	O
no	O
functionality	O
for	O
easily	O
editing	O
aspects	O
of	O
the	O
game	O
such	O
as	O
the	O
enemy	O
graphics	O
.	O
</s>
<s>
Versions	O
of	O
Crystal	B-Operating_System
Crazy	I-Operating_System
before	O
1.05	O
do	O
not	O
have	O
sound	O
on	O
PowerPC-based	O
Macintoshes	O
.	O
</s>
<s>
The	O
general	O
objective	O
of	O
Crystal	B-Operating_System
Crazy	I-Operating_System
is	O
to	O
collect	O
all	O
the	O
crystals	O
on	O
a	O
given	O
stage	O
,	O
and	O
often	O
to	O
complete	O
other	O
quests	O
,	O
then	O
escape	O
through	O
an	O
opening	O
at	O
the	O
bottom	O
of	O
the	O
screen	O
.	O
</s>
<s>
Computer	O
Gaming	O
World	O
in	O
March	O
1994	O
stated	O
that	O
Crystal	B-Operating_System
Crazy	I-Operating_System
"	O
shows	O
how	O
to	O
do	O
a	O
sequel	O
right	O
"	O
and	O
"	O
just	O
as	O
fun	O
"	O
as	O
"	O
its	O
hallowed	O
predecessor	O
"	O
.	O
</s>
