<s>
Zillion	B-Application
,	O
known	O
as	O
in	O
Japan	O
,	O
is	O
a	O
space	O
adventure	O
platform	O
video	O
game	O
developed	O
by	O
Sega	O
and	O
designed	O
for	O
the	O
Master	O
System	O
as	O
a	O
companion	O
tie-in	O
for	O
Tatsunoko	O
Production	O
's	O
Zillion	B-Application
anime	O
series	O
in	O
1987	O
.	O
</s>
<s>
The	O
Zillion	B-Application
series	O
prominently	O
features	O
Sega	O
's	O
egg-shaped	O
mascot	O
,	O
Opa-opa	B-Application
,	O
who	O
stars	O
in	O
the	O
Fantasy	B-Application
Zone	I-Application
games	O
,	O
which	O
are	O
also	O
available	O
for	O
the	O
Master	O
System	O
.	O
</s>
<s>
A	O
sequel	O
to	O
the	O
game	O
,	O
Zillion	B-Application
II	I-Application
was	O
released	O
in	O
1988	O
.	O
</s>
<s>
In	O
order	O
to	O
do	O
so	O
,	O
J.J.	O
,	O
the	O
main	O
character	O
from	O
the	O
Zillion	B-Application
anime	O
,	O
must	O
infiltrate	O
the	O
base	O
and	O
acquire	O
the	O
five	O
floppy	O
disks	O
that	O
will	O
enable	O
him	O
to	O
input	O
the	O
self-destruct	O
sequence	O
into	O
the	O
base	O
's	O
mainframe	O
computer	O
.	O
</s>
<s>
The	O
game	O
has	O
been	O
compared	O
to	O
Epyx	O
's	O
Impossible	B-Application
Mission	I-Application
by	O
The	O
Games	O
Machine	O
and	O
GamesTM	O
,	O
in	O
which	O
objects	O
must	O
be	O
inspected	O
to	O
enable	O
things	O
by	O
accessing	O
codes	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
compared	O
to	O
Nintendo	O
's	O
Metroid	B-Device
.	O
</s>
