<s>
Boot	B-Application
Hill	I-Application
is	O
a	O
multidirectional	O
shooter	O
arcade	B-Application
video	I-Application
game	I-Application
released	O
by	O
Midway	O
in	O
1977	O
.	O
</s>
<s>
It	O
is	O
a	O
sequel	O
to	O
the	O
1975	O
video	O
game	O
Gun	B-Application
Fight	I-Application
,	O
originally	O
released	O
by	O
Taito	O
as	O
Western	B-Application
Gun	I-Application
in	O
Japan	O
.	O
</s>
<s>
It	O
was	O
released	O
under	O
license	O
from	O
Taito	O
,	O
as	O
Boot	B-Application
Hill	I-Application
is	O
another	O
version	O
of	O
Western	B-Application
Gun	I-Application
.	O
</s>
<s>
Each	O
player	O
uses	O
a	O
small	O
joystick	B-Device
to	O
move	O
their	O
cowboy	O
up	O
and	O
down	O
the	O
play	O
area	O
,	O
while	O
a	O
second	O
,	O
larger	O
joystick	B-Device
is	O
used	O
to	O
aim	O
the	O
pistol	O
and	O
shoot	O
.	O
</s>
<s>
In	O
the	O
United	O
States	O
,	O
the	O
third	O
annual	O
RePlay	O
arcade	B-Application
chart	O
listed	O
Boot	B-Application
Hill	I-Application
as	O
the	O
11th	O
highest-grossing	O
arcade	B-Application
video	I-Application
game	I-Application
of	I-Application
1977	I-Application
.	O
</s>
<s>
The	O
first	O
annual	O
Play	O
Meter	O
arcade	B-Application
chart	O
listed	O
Boot	B-Application
Hill	I-Application
as	O
the	O
14th	O
highest-grossing	O
arcade	B-Application
game	O
of	O
1977	O
(	O
or	O
13th	O
highest	O
video	O
game	O
,	O
excluding	O
the	O
electro-mechanical	O
game	O
F-1	B-Application
)	O
.	O
</s>
<s>
RePlay	O
later	O
listed	O
it	O
as	O
the	O
20th	O
highest-grossing	O
arcade	B-Application
game	I-Application
of	I-Application
1978	I-Application
.	O
</s>
