<s>
is	O
a	O
2D	B-Application
action	I-Application
platform	O
game	O
developed	O
by	O
Thinking	O
Rabbit	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
in	O
1988	O
.	O
</s>
<s>
Piko	O
Interactive	O
acquired	O
the	O
right	O
of	O
this	O
game	O
and	O
released	O
it	O
for	O
Windows	O
via	O
Steam	B-Application
in	O
August	O
14	O
,	O
2019	O
.	O
</s>
<s>
This	O
game	O
also	O
included	O
in	O
Evercade	B-Application
Piko	O
Interactive	O
Collection	O
1	O
that	O
was	O
released	O
in	O
June	O
18	O
,	O
2020	O
.	O
</s>
<s>
8	B-Application
Eyes	I-Application
is	O
set	O
in	O
a	O
post-apocalyptic	O
future	O
.	O
</s>
<s>
Mankind	O
is	O
recovering	O
from	O
hundreds	O
of	O
years	O
of	O
chaos	O
and	O
nuclear	O
war	O
,	O
and	O
civilization	O
is	O
being	O
rebuilt	O
by	O
the	O
Great	O
King	O
,	O
who	O
harnesses	O
the	O
power	O
of	O
eight	O
jewels	B-Operating_System
.	O
</s>
<s>
The	O
jewels	B-Operating_System
,	O
known	O
as	O
the	O
8	B-Application
Eyes	I-Application
,	O
were	O
formed	O
at	O
the	O
centers	O
of	O
eight	O
nuclear	O
explosions	O
that	O
came	O
close	O
to	O
destroying	O
the	O
Earth	O
.	O
</s>
<s>
The	O
8	B-Application
Eyes	I-Application
have	O
mysterious	O
power	O
which	O
,	O
in	O
the	O
wrong	O
hands	O
,	O
could	O
bring	O
about	O
the	O
end	O
of	O
the	O
world	O
.	O
</s>
<s>
The	O
Great	O
King	O
's	O
eight	O
power-hungry	O
dukes	O
steal	O
the	O
jewels	B-Operating_System
for	O
themselves	O
and	O
banish	O
the	O
King	O
to	O
the	O
nuclear	O
wastelands	O
,	O
threatening	O
to	O
once	O
again	O
plunge	O
the	O
Earth	O
into	O
war	O
.	O
</s>
<s>
The	O
player	O
controls	O
Orin	O
the	O
Falconer	O
and	O
his	O
fighting	O
falcon	B-Algorithm
Cutrus	O
.	O
</s>
<s>
His	O
mission	O
is	O
to	O
infiltrate	O
the	O
Dukes	O
 '	O
eight	O
castles	B-Application
and	O
retrieve	O
the	O
8	B-Application
Eyes	I-Application
.	O
</s>
<s>
With	O
the	O
help	O
of	O
Cutrus	O
,	O
Orin	O
must	O
fight	O
the	O
Dukes	O
 '	O
soldiers	O
,	O
nuclear	O
mutants	O
,	O
and	O
the	O
duke	O
of	O
each	O
castle	O
to	O
retrieve	O
the	O
jewels	B-Operating_System
.	O
</s>
<s>
After	O
the	O
jewels	B-Operating_System
have	O
been	O
recovered	O
,	O
Orin	O
must	O
return	O
them	O
to	O
the	O
Altar	O
of	O
Peace	O
so	O
that	O
the	O
Great	O
King	O
may	O
return	O
and	O
finish	O
rebuilding	O
the	O
Earth	O
.	O
</s>
<s>
The	O
player	O
can	O
choose	O
to	O
play	O
each	O
of	O
the	O
first	O
seven	O
castles	B-Application
in	O
any	O
order	O
,	O
though	O
the	O
boss	O
at	O
the	O
end	O
of	O
each	O
is	O
vulnerable	O
to	O
only	O
one	O
sword	O
.	O
</s>
<s>
After	O
the	O
House	O
of	O
Ruth	O
has	O
been	O
cleared	O
and	O
the	O
8	B-Application
Eyes	I-Application
recovered	O
,	O
the	O
player	O
must	O
return	O
the	O
jewels	B-Operating_System
to	O
the	O
Altar	O
of	O
Peace	O
.	O
</s>
<s>
At	O
this	O
point	O
the	O
jewels	B-Operating_System
must	O
be	O
placed	O
in	O
a	O
particular	O
order	O
,	O
or	O
the	O
game	O
is	O
lost	O
.	O
</s>
<s>
Hints	O
about	O
the	O
order	O
of	O
the	O
jewels	B-Operating_System
are	O
also	O
hidden	O
throughout	O
the	O
game	O
.	O
</s>
<s>
8	B-Application
Eyes	I-Application
features	O
a	O
cooperative	O
mode	O
in	O
which	O
one	O
player	O
controls	O
Orin	O
and	O
the	O
other	O
player	O
controls	O
Cutrus	O
.	O
</s>
<s>
The	O
gameplay	O
and	O
graphical	O
style	O
are	O
noticeably	O
similar	O
to	O
Castlevania	B-Application
.	O
</s>
<s>
8	B-Application
Eyes	I-Application
received	O
mediocre	O
reviews	O
upon	O
its	O
release	O
.	O
</s>
<s>
Electronic	O
Gaming	O
Monthly	O
scored	O
8	B-Application
Eyes	I-Application
23/40	O
.	O
</s>
