<s>
The	B-Application
Berlin	I-Application
Wall	I-Application
(	O
released	O
as	O
in	O
Japan	O
)	O
is	O
a	O
1	O
–	O
2	O
player	O
platform	O
arcade	B-Application
video	I-Application
game	I-Application
released	O
by	O
Kaneko	O
in	O
1991	O
;	O
two	O
years	O
after	O
the	O
fall	O
of	O
the	O
actual	O
Berlin	O
Wall	O
.	O
</s>
<s>
The	O
player	O
takes	O
control	O
of	O
a	O
young	O
boy	O
who	O
must	O
use	O
his	O
hammer	B-Application
to	O
break	O
the	O
blocks	O
that	O
form	O
part	O
of	O
the	O
platform	O
levels	O
comprising	O
each	O
stage	O
.	O
</s>
<s>
These	O
holes	O
act	O
as	O
falling	O
traps	O
for	O
the	O
many	O
patrolling	O
,	O
multi-coloured	O
monsters	B-Application
and	O
once	O
one	O
has	O
fallen	O
into	O
a	O
hole	O
,	O
the	O
player	O
may	O
then	O
use	O
the	O
hammer	B-Application
on	O
the	O
monster	B-Application
to	O
make	O
it	O
fall	O
through	O
the	O
hole	O
and	O
down	O
to	O
the	O
platform	O
below	O
–	O
causing	O
it	O
to	O
transform	O
into	O
fruit	O
or	O
power-ups	O
,	O
which	O
can	O
then	O
be	O
collected	O
and	O
used	O
.	O
</s>
<s>
Part	O
of	O
the	O
money	O
earned	O
from	O
sales	O
of	O
the	O
arcade	B-Application
version	O
went	O
towards	O
a	O
relief	O
fund	O
for	O
disaster	O
victims	O
through	O
the	O
Japanese	O
Red	O
Cross	O
Society	O
.	O
</s>
<s>
The	O
game	O
bears	O
a	O
number	O
of	O
similarities	O
to	O
Space	B-Application
Panic	I-Application
,	O
a	O
game	O
generally	O
considered	O
as	O
the	O
first	O
platform	O
video	O
game	O
.	O
</s>
