<s>
is	O
a	O
side-scrolling	O
shoot	O
'	O
em	O
up	O
video	O
game	O
released	O
for	O
the	O
MSX	B-Operating_System
computer	O
in	O
1987	O
by	O
Konami	O
.	O
</s>
<s>
The	O
game	O
is	O
a	O
sequel	O
to	O
Nemesis	B-Application
,	O
the	O
MSX	B-Operating_System
version	O
of	O
Gradius	B-Application
,	O
but	O
is	O
unrelated	O
to	O
the	O
arcade	O
game	O
Gradius	B-Application
II	I-Application
(	O
which	O
used	O
the	O
Roman	O
numeral	O
'	O
II	O
 '	O
)	O
.	O
</s>
<s>
This	O
version	O
was	O
ported	O
to	O
the	O
X68000	B-Device
computer	O
under	O
the	O
name	O
,	O
with	O
some	O
graphical	O
and	O
aural	O
enhancements	O
.	O
</s>
<s>
In	O
a	O
departure	O
from	O
other	O
games	O
,	O
instead	O
of	O
controlling	O
Vic	B-Application
Viper	I-Application
,	O
the	O
available	O
ship	O
is	O
called	O
Metalion	O
.	O
</s>
<s>
In	O
the	O
year	O
6665	O
,	O
he	O
escapes	O
and	O
invades	O
Planet	O
Nemesis	B-Application
and	O
the	O
seven	O
planets	O
it	O
controls	O
with	O
the	O
help	O
of	O
Bacterion	O
.	O
</s>
<s>
The	O
Nemesis	B-Application
High	O
Council	O
sends	O
James	O
Burton	O
,	O
ex-pilot	O
of	O
the	O
Vic	B-Application
Viper	I-Application
,	O
to	O
pilot	O
Metalion	O
and	O
attack	O
Dr.	O
Venom	O
and	O
the	O
Bacterion	O
invaders	O
.	O
</s>
<s>
This	O
X68000	B-Device
port	O
is	O
essentially	O
an	O
enhanced	O
remake	O
of	O
Nemesis	B-Application
2	I-Application
with	O
graphical	O
quality	O
on	O
par	O
with	O
Gradius	B-Application
III	I-Application
.	O
</s>
<s>
It	O
includes	O
two	O
new	O
stages	O
exclusive	O
to	O
this	O
version	O
of	O
the	O
game	O
,	O
and	O
four	O
new	O
bosses	O
(	O
two	O
of	O
which	O
replace	O
the	O
rematches	O
fought	O
in	O
the	O
MSX	B-Operating_System
version	O
.	O
)	O
</s>
<s>
Aside	O
from	O
being	O
remade	O
as	O
Nemesis	B-Application
'	O
90	O
Kai	O
,	O
Nemesis	B-Application
2	I-Application
was	O
also	O
ported	O
to	O
mobile	O
phones	O
in	O
2006	O
and	O
Sony	B-Operating_System
PSP	I-Operating_System
in	O
2007	O
as	O
part	O
of	O
the	O
Salamander	O
Portable	O
collection	O
.	O
</s>
<s>
Gradius	B-Application
2	I-Application
was	O
re-released	O
for	O
Wii	O
's	O
Virtual	O
Console	O
in	O
2009	O
,	O
for	O
Project	O
EGG	O
in	O
2015	O
,	O
and	O
for	O
Wii	O
U	O
Virtual	O
Console	O
in	O
2016	O
in	O
Japan	O
.	O
</s>
