<s>
Vapor	B-Application
Trail	I-Application
:	O
Hyper	O
Offense	O
Formation	O
,	O
known	O
in	O
Japan	O
as	O
and	O
usually	O
simply	O
referred	O
to	O
as	O
Vapor	B-Application
Trail	I-Application
,	O
is	O
a	O
1989	B-Application
shoot	O
'	O
em	O
up	O
arcade	O
game	O
developed	O
and	O
published	O
by	O
Data	O
East	O
.	O
</s>
<s>
Vapor	B-Application
Trail	I-Application
was	O
followed	O
by	O
Rohga	B-Application
:	I-Application
Armor	I-Application
Force	I-Application
and	O
Skull	B-Application
Fang	I-Application
.	O
</s>
<s>
In	O
1999	O
,	O
a	O
terrorist	O
organization	O
known	O
only	O
as	O
DAGGER	O
(	O
Ragnarok	B-Application
in	O
the	O
Japanese	O
release	O
)	O
has	O
occupied	O
the	O
city	O
of	O
New	O
York	O
where	O
they	O
have	O
hacked	O
into	O
military	O
defenses	O
world-wide	O
,	O
established	O
their	O
own	O
military	O
command	O
and	O
gained	O
access	O
to	O
nuclear	O
missile	O
silos	O
.	O
</s>
<s>
Vapor	B-Application
Trail	I-Application
was	O
ported	O
in-house	O
by	O
Data	O
East	O
to	O
the	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive/Genesis	I-Operating_System
in	O
1991	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Vapor	B-Application
Trail	I-Application
on	O
their	O
March	O
1	O
,	O
1990	O
issue	O
as	O
being	O
the	O
second	O
most-successful	O
table	O
arcade	O
unit	O
of	O
the	O
month	O
.	O
</s>
