<s>
Hammer	B-Application
Heads	I-Application
is	O
an	O
action	B-Application
arcade	O
game	O
similar	O
to	O
Whac-A-Mole	O
.	O
</s>
<s>
The	O
deluxe	O
version	O
of	O
Hammer	B-Application
Heads	I-Application
includes	O
a	O
checkpoint	O
system	O
for	O
the	O
regular	O
classic	O
mode	O
.	O
</s>
<s>
Hammer	B-Application
Heads	I-Application
Deluxe	O
also	O
includes	O
a	O
marathon	O
mode	O
,	O
which	O
is	O
similar	O
to	O
classic	O
mode	O
,	O
however	O
,	O
the	O
player	O
is	O
given	O
no	O
checkpoints	O
and	O
the	O
game	O
can	O
last	O
indefinitely	O
.	O
</s>
<s>
Hammer	B-Application
Heads	I-Application
Deluxe	O
has	O
a	O
trophy	O
system	O
similar	O
to	O
Chuzzle	B-Operating_System
Deluxe	I-Operating_System
.	O
</s>
