<s>
Grid	B-Application
Seeker	I-Application
:	I-Application
Project	I-Application
Storm	I-Application
Hammer	I-Application
( グリッドシーカー	O
)	O
is	O
a	O
vertically	O
scrolling	O
shooter	O
arcade	O
game	O
developed	O
by	O
Taito	O
.	O
</s>
<s>
Though	O
an	O
otherwise	O
basic	O
vertical	O
shooter	O
,	O
Grid	O
Seeker	O
featured	O
a	O
unique	O
style	O
of	O
attack	O
to	O
players	O
:	O
by	O
using	O
their	O
Grid	O
item	O
,	O
a	O
dual-firing	O
shield	O
similar	O
to	O
that	O
of	O
the	O
Force	O
from	O
R-Type	B-Application
,	O
players	O
could	O
absorb	O
enemy	O
shots	O
using	O
their	O
Grid	O
.	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
Grid	B-Application
Seeker	I-Application
:	I-Application
Project	I-Application
Storm	I-Application
Hammer	I-Application
on	O
their	O
April	O
15	O
,	O
1993	O
issue	O
as	O
being	O
the	O
twenty-first	O
most-successful	O
table	O
arcade	O
unit	O
of	O
the	O
month	O
.	O
</s>
