<s>
Clash	B-Application
at	I-Application
Demonhead	I-Application
,	O
known	O
in	O
Japan	O
as	O
,	O
is	O
an	O
action-adventure	O
platform	O
game	O
released	O
by	O
Vic	O
Tokai	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
on	O
January	O
27	O
,	O
1989	O
in	O
Japan	O
and	O
December	O
1989	O
in	O
North	O
America	O
.	O
</s>
<s>
Clash	B-Application
at	I-Application
Demonhead	I-Application
is	O
an	O
open-ended	O
platformer	O
.	O
</s>
