<s>
Quarterback	B-Application
is	O
a	O
one	O
-	O
or	O
two-player	O
American	B-Application
football	I-Application
arcade	O
game	O
released	O
by	O
Leland	O
in	O
1987	B-Application
.	O
</s>
<s>
On	O
Offensive	O
,	O
the	O
player	O
chooses	O
a	O
strategy	O
by	O
selecting	O
a	O
play	O
and	O
maneuvering	O
their	O
quarterback	B-Application
through	O
the	O
right	O
hole	O
or	O
leading	O
the	O
intended	O
receiver	O
with	O
the	O
passing	O
target	O
to	O
complete	O
a	O
pass	O
.	O
</s>
<s>
On	O
Defense	O
,	O
the	O
objective	O
is	O
to	O
outwit	O
the	O
opponent	O
by	O
choosing	O
an	O
alignment	O
that	O
will	O
stop	O
the	O
offense	O
while	O
positioning	O
the	O
player	O
's	O
linebacker	O
to	O
fill	O
the	O
gap	O
,	O
sack	O
the	O
quarterback	B-Application
,	O
or	O
complete	O
a	O
pass	O
.	O
</s>
