<s>
NFL	B-Application
Football	I-Application
is	O
a	O
sports	O
video	O
game	O
developed	O
by	O
Mattel	O
and	O
released	O
for	O
its	O
Intellivision	B-Operating_System
video	O
game	O
system	O
in	O
1979	B-Application
.	O
</s>
<s>
The	O
players	O
each	O
control	O
a	O
football	B-Application
team	O
competing	O
in	O
a	O
standard	O
four-quarter	O
game	O
.	O
</s>
<s>
Like	O
Mattel	O
's	O
other	O
sports	O
video	O
games	O
,	O
NFL	B-Application
Football	I-Application
did	O
not	O
use	O
any	O
official	O
National	O
Football	B-Application
League	O
team	O
names	O
or	O
player	O
names	O
,	O
even	O
though	O
Mattel	O
obtained	O
a	O
license	O
from	O
the	O
NFL	O
and	O
used	O
the	O
league	O
's	O
logo	O
in	O
its	O
box	O
art	O
.	O
</s>
<s>
NFL	B-Application
Football	I-Application
has	O
been	O
cited	O
as	O
the	O
first	O
football	B-Application
video	O
game	O
to	O
have	O
a	O
playbook	O
.	O
</s>
<s>
The	O
player	O
controls	O
a	O
five-man	O
football	B-Application
team	O
,	O
actively	O
controlling	O
one	O
team	O
member	O
at	O
a	O
time	O
,	O
with	O
the	O
computer	O
controlling	O
the	O
rest	O
.	O
</s>
<s>
As	O
in	O
traditional	O
American	B-Application
football	I-Application
,	O
the	O
player	O
's	O
team	O
must	O
score	O
more	O
points	O
than	O
the	O
opponent	O
's	O
team	O
within	O
the	O
time	O
limit	O
of	O
the	O
game	O
.	O
</s>
<s>
The	O
game	O
consists	O
of	O
four	O
quarters	O
,	O
each	O
a	O
simulated	O
15	O
minutes	O
in	O
length	O
,	O
and	O
takes	O
place	O
on	O
a	O
horizontally	O
scrolling	O
100-yard	O
simulated	O
football	B-Application
field	O
.	O
</s>
<s>
NFL	B-Application
Football	I-Application
is	O
played	O
in	O
the	O
same	O
basic	O
manner	O
as	O
a	O
regulation	O
game	O
of	O
football	B-Application
,	O
with	O
the	O
offense	O
being	O
given	O
four	O
downs	O
to	O
advance	O
the	O
ball	O
a	O
minimum	O
of	O
ten	O
yards	O
before	O
losing	O
possession	O
of	O
the	O
football	B-Application
to	O
the	O
opposing	O
team	O
.	O
</s>
<s>
The	O
player	O
on	O
offense	O
generally	O
controls	O
the	O
team	O
's	O
quarterback	B-Application
unless	O
the	O
ball	O
is	O
handed	O
off	O
to	O
a	O
running	O
back	O
or	O
passed	O
to	O
an	O
eligible	O
receiver	O
.	O
</s>
<s>
NFL	B-Application
Football	I-Application
made	O
numerous	O
concessions	O
to	O
how	O
a	O
standard	O
game	O
of	O
football	B-Application
is	O
played	O
.	O
</s>
<s>
Unlike	O
modern	O
football	B-Application
video	O
games	O
,	O
which	O
use	O
statistics	O
to	O
determine	O
a	O
team	O
's	O
relative	O
strengths	O
and	O
weaknesses	O
,	O
the	O
two	O
teams	O
in	O
the	O
game	O
are	O
of	O
equal	O
strength	O
,	O
with	O
the	O
only	O
significant	O
variable	O
being	O
the	O
player	O
's	O
own	O
abilities	O
.	O
</s>
<s>
Safeties	O
are	O
possible	O
and	O
are	O
handled	O
in	O
the	O
same	O
manner	O
as	O
regulation	O
football	B-Application
,	O
with	O
the	O
defensive	O
team	O
receiving	O
two	O
points	O
and	O
possession	O
of	O
the	O
ball	O
,	O
although	O
in	O
lieu	O
of	O
a	O
kick-off	O
,	O
the	O
team	O
scoring	O
the	O
safety	O
takes	O
possession	O
on	O
its	O
own	O
20-yard	O
line	O
.	O
</s>
<s>
NFL	B-Application
Football	I-Application
was	O
sold	O
by	O
Sears	O
for	O
the	O
Super	B-Operating_System
Video	I-Operating_System
Arcade	I-Operating_System
under	O
the	O
title	O
Football	B-Application
,	O
its	O
private-label	O
version	O
of	O
the	O
Intellivision	B-Operating_System
console	O
,	O
without	O
the	O
NFL	O
name	O
or	O
logo	O
.	O
</s>
<s>
M	O
Network	O
,	O
Mattel	O
's	O
third-party	O
brand	O
,	O
released	O
a	O
port	O
of	O
NFL	B-Application
Football	I-Application
called	O
Super	O
Challenge	O
Football	B-Application
for	O
the	O
Atari	B-General_Concept
2600	I-General_Concept
in	O
1982	O
.	O
</s>
<s>
Similarly	O
,	O
the	O
game	O
appears	O
in	O
the	O
Intellivision	B-Operating_System
Lives	O
compilation	O
game	O
and	O
on	O
Microsoft	O
's	O
Game	B-Device
Room	I-Device
service	O
as	O
Football	B-Application
.	O
</s>
<s>
Football	B-Application
was	O
reviewed	O
by	O
Video	O
magazine	O
in	O
its	O
"	O
Arcade	O
Alley	O
"	O
column	O
where	O
it	O
was	O
praised	O
for	O
its	O
number	O
and	O
variety	O
of	O
available	O
plays	O
.	O
</s>
<s>
In	O
allowing	O
the	O
player	O
a	O
great	O
degree	O
of	O
control	O
over	O
the	O
strategic	O
elements	O
of	O
the	O
game	O
,	O
the	O
reviewers	O
asserted	O
,	O
"	O
NFL	B-Application
Football	I-Application
will	O
make	O
video	O
arcade	O
lovers	O
think	O
they	O
've	O
died	O
and	O
gone	O
to	O
Super	O
Bowl	O
heaven.	O
"	O
</s>
