<s>
Hydrofool	B-Application
is	O
an	O
isometric	O
3D	O
action-adventure	O
game	O
released	O
by	O
FTL	O
in	O
1987	B-Application
for	O
the	O
ZX	B-Operating_System
Spectrum	I-Operating_System
and	O
Amstrad	B-Device
CPC	I-Device
.	O
</s>
<s>
It	O
is	O
the	O
sequel	O
to	O
Sweevo	B-Application
's	I-Application
World	I-Application
.	O
</s>
<s>
The	O
gigantic	O
aquarium	B-Application
known	O
as	O
the	O
"	O
Deathbowl	O
"	O
has	O
become	O
so	O
heavily	O
polluted	O
that	O
the	O
only	O
remedy	O
is	O
to	O
completely	O
drain	O
it	O
by	O
pulling	O
out	O
each	O
of	O
its	O
four	O
plugs	O
.	O
</s>
<s>
The	O
robot	O
Sweevo	B-Application
has	O
been	O
ordered	O
to	O
perform	O
this	O
task	O
.	O
</s>
<s>
Sweevo	B-Application
must	O
swim	O
through	O
the	O
caverns	O
of	O
the	O
Deathbowl	O
finding	O
and	O
pulling	O
the	O
plugs	O
in	O
the	O
correct	O
order	O
.	O
</s>
<s>
To	O
pull	O
a	O
plug	O
several	O
puzzles	O
must	O
be	O
solved	O
using	O
the	O
objects	O
that	O
scatter	O
the	O
floor	O
of	O
the	O
aquarium	B-Application
.	O
</s>
<s>
The	O
Deathbowl	O
is	O
populated	O
by	O
creatures	O
which	O
will	O
try	O
to	O
stop	O
Sweevo	B-Application
from	O
carrying	O
out	O
his	O
task	O
.	O
</s>
<s>
The	O
Deathbowl	O
is	O
constructed	O
of	O
several	O
superimposed	O
levels	O
and	O
Sweevo	B-Application
can	O
travel	O
between	O
them	O
by	O
riding	O
bubbles	O
or	O
diving	O
into	O
whirlpools	B-Algorithm
.	O
</s>
<s>
Sweevo	B-Application
begins	O
to	O
rust	B-Application
as	O
soon	O
as	O
he	O
enters	O
the	O
water	O
and	O
must	O
complete	O
his	O
mission	O
before	O
he	O
becomes	O
incapacitated	O
.	O
</s>
<s>
Contact	O
with	O
dangerous	O
creatures	O
or	O
structures	O
will	O
also	O
cause	O
rusting	O
,	O
while	O
oil	O
cans	O
will	O
remove	O
some	O
rust	B-Application
from	O
him	O
.	O
</s>
<s>
The	O
graphics	O
and	O
sprites	O
are	O
all	O
wonderfully	O
clear	O
and	O
well	O
thought	O
out	O
,	O
and	O
as	O
usual	O
with	O
Gargoyle/FTL	O
,	O
the	O
design	O
's	O
immaculate.	O
"	O
</s>
<s>
Crash	O
:	O
"	O
The	O
feel	O
of	O
the	O
game	O
relies	O
heavily	O
on	O
the	O
high	O
quality	O
graphics	O
-	O
Sweevo	B-Application
really	O
does	O
seem	O
to	O
be	O
swimming	O
underwater	O
.	O
</s>
<s>
With	O
the	O
large	O
number	O
of	O
screens	O
,	O
and	O
the	O
intricately	O
woven	O
Greg	B-Application
Follis	I-Application
puzzles	O
,	O
Hydrofool	B-Application
should	O
hold	O
appeal	O
for	O
quite	O
some	O
time.	O
"	O
</s>
