<s>
is	O
a	O
1990	O
combat	O
flight	O
simulator	O
arcade	B-Application
game	O
developed	O
and	O
published	O
by	O
Sega	O
.	O
</s>
<s>
It	O
is	O
a	O
spin-off	O
of	O
the	O
company	O
's	O
After	B-Application
Burner	I-Application
series	O
.	O
</s>
<s>
The	O
title	O
refers	O
to	O
"	O
G-force	B-Application
induced	I-Application
Loss	I-Application
Of	I-Application
Consciousness	I-Application
"	O
.	O
</s>
<s>
The	O
game	O
is	O
known	O
for	O
its	O
use	O
of	O
the	O
R360	B-Application
motion	O
simulator	O
arcade	B-Application
cabinet	O
.	O
</s>
<s>
The	O
arcade	B-Application
game	O
was	O
a	O
commercial	O
and	O
critical	O
success	O
upon	O
release	O
.	O
</s>
<s>
The	O
game	O
was	O
released	O
in	O
three	O
arcade	B-Application
cabinet	O
versions	O
:	O
a	O
standard	O
stand-up	O
version	O
,	O
a	O
sit-down	O
version	O
and	O
a	O
deluxe	O
sit-down	O
version	O
:	O
the	O
R-360	B-Application
cabinet	O
.	O
</s>
<s>
The	O
R-360	B-Application
gives	O
the	O
game	O
into	O
a	O
more	O
dynamic	O
feel	O
as	O
the	O
cabinet	O
responds	O
to	O
the	O
pilot	O
's	O
actions	O
,	O
improving	O
on	O
the	O
limited	O
path	O
of	O
plane	O
movement	O
in	O
the	O
standup	O
and	O
sit-down	O
versions	O
.	O
</s>
<s>
The	O
cabinet	O
is	O
mounted	O
on	O
a	O
gyroscope	B-Application
that	O
can	O
rotate	O
along	O
two	O
axes	O
,	O
attached	O
to	O
a	O
base	O
which	O
is	O
stationary	O
.	O
</s>
<s>
The	O
game	O
was	O
ported	O
to	O
the	O
Sega	B-Operating_System
Mega	I-Operating_System
Drive	I-Operating_System
,	O
the	O
Sega	O
Master	O
System	O
and	O
the	O
Sega	O
Game	O
Gear	O
.	O
</s>
<s>
Because	O
the	O
R360	B-Application
cabinet	O
made	O
the	O
game	O
more	O
impressive	O
the	O
home	O
computer	O
versions	O
(	O
Commodore	O
64	O
,	O
Amstrad	B-Device
CPC	I-Device
,	O
ZX	B-Operating_System
Spectrum	I-Operating_System
,	O
Atari	B-Device
ST	I-Device
,	O
and	O
Amiga	B-Device
)	O
were	O
named	O
G-LOC	B-Application
R360	B-Application
.	O
</s>
<s>
Some	O
ports	O
include	O
certain	O
features	O
not	O
present	O
in	O
the	O
arcade	B-Application
version	O
.	O
</s>
<s>
The	O
Mega	B-Operating_System
Drive	I-Operating_System
version	O
alternates	O
between	O
first	O
and	O
third-person	O
perspectives	O
at	O
times	O
,	O
the	O
Master	O
System	O
one	O
features	O
bosses	O
,	O
and	O
the	O
Game	O
Gear	O
one	O
employs	O
points	O
that	O
can	O
be	O
used	O
to	O
upgrade	O
the	O
jet	O
.	O
</s>
<s>
The	O
original	O
arcade	B-Application
version	O
was	O
ported	O
to	O
home	O
consoles	O
for	O
the	O
first	O
time	O
in	O
2020	O
for	O
the	O
Nintendo	B-Application
Switch	I-Application
under	O
the	O
Sega	O
Ages	O
series	O
.	O
</s>
<s>
Reception	O
Review	O
scores	O
Publication	O
Scores	O
Arcade	B-Application
Mega	B-Operating_System
Drive	I-Operating_System
Master	O
System	O
Beep	O
!	O
</s>
<s>
In	O
Japan	O
,	O
Game	O
Machine	O
listed	O
G-LOC	B-Application
:	I-Application
Air	I-Application
Battle	I-Application
on	O
their	O
June	O
1	O
,	O
1990	O
issue	O
as	O
being	O
the	O
most-successful	O
upright	O
arcade	B-Application
game	O
of	O
the	O
month	O
.	O
</s>
<s>
The	O
deluxe	O
cabinet	O
version	O
went	O
on	O
to	O
become	O
Japan	O
's	O
ninth	O
highest-grossing	O
dedicated	O
arcade	B-Application
game	I-Application
of	I-Application
1990	I-Application
.	O
</s>
<s>
It	O
was	O
later	O
Japan	O
's	O
fifth	O
highest-grossing	O
dedicated	O
arcade	B-Application
game	I-Application
of	I-Application
1991	I-Application
.	O
</s>
<s>
In	O
a	O
retrospective	O
review	O
,	O
Brett	O
Weiss	O
of	O
Allgame	O
gave	O
the	O
arcade	B-Application
version	O
a	O
score	O
of	O
3.5	O
out	O
of	O
5	O
stars	O
.	O
</s>
<s>
He	O
compared	O
the	O
game	O
to	O
After	B-Application
Burner	I-Application
saying	O
that	O
G-Loc	B-Application
has	O
"	O
Superior	O
graphics	O
and	O
slightly	O
more	O
versatile	O
gameplay.	O
"	O
</s>
<s>
It	O
was	O
the	O
top-grossing	O
new	O
video	O
game	O
on	O
the	O
RePlay	O
arcade	B-Application
charts	O
in	O
June	O
1990	O
.	O
</s>
<s>
It	O
was	O
then	O
the	O
second	O
highest-grossing	O
dedicated	O
arcade	B-Application
game	O
in	O
September	O
1990	O
,	O
below	O
Konami	O
's	O
Teenage	B-Application
Mutant	I-Application
Ninja	I-Application
Turtles	I-Application
.	O
</s>
<s>
The	O
arcade	B-Application
game	O
received	O
positive	O
reviews	O
from	O
critics	O
upon	O
release	O
.	O
</s>
<s>
G-LOC	B-Application
received	O
a	O
Japan-only	O
sequel	O
in	O
1991	O
,	O
Strike	B-Application
Fighter	I-Application
(	O
not	O
to	O
be	O
confused	O
with	O
Sega	O
Strike	B-Application
Fighter	I-Application
,	O
released	O
in	O
2000	O
)	O
.	O
</s>
<s>
It	O
was	O
ported	O
to	O
the	O
FM	B-Device
Towns	I-Device
computer	O
and	O
the	O
Sega	B-Device
CD	I-Device
console	O
as	O
After	B-Application
Burner	I-Application
III	I-Application
.	O
</s>
