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gloc: MAME ROM Information.


G-Loc - Air Battle (c) 1990 Sega.

A direct sequel to 1987's "After Burner", G-loc adopts its predecessor's action-packed, if somewhat limited, gameplay, although the game's pace has been noticeably reduced, making survival more a matter of skill than the shoot-and-hope gameplay of "After Burner".

The bulk of G-Loc's action is viewed from a first-person, in-cockpit view, but, at certain points of the game, the viewpoint switches to the familiar third-person perspective of "After Burner", as the player's jet fighter is tailed by an enemy fighter. The player must roll and turn to shake off the pursuer, once this is achieved the game switches back to first-person perspective.

The object of the game is to shoot a set number of enemy planes as they approach from front and behind; rolling and swerving to avoid incoming enemy fire. Certain stages feature ground-based enemy installations which must also be destroyed. The player's jet fighter is armed with both a machine gun, and a limited supply of missiles which can be 'locked-on' to enemy targets. G-Loc's levels take the player through a variety of different landscapes, including wide, rolling plains and rock-strewn canyons. Later in the game, the player must attempt to land their fighter onto an aircraft carrier. Failure to do so results in the game ending.


Sega Y Board hardware

Main CPU : (3x) 68000 (@ 12.5 Mhz)

Sound CPU : Z80 (@ 4 Mhz)

Sound Chips : YM2151 (@ 4 Mhz), Sega (@ 4 Mhz)

Players : 1

Control : stick

Buttons : 3


Released in April 1990.

'G-Loc' means 'G-induced Loss Of Consciousness'; the subtitle on the arcade flyer is 'Loss of Consciousness by G-force'.

An enhanced version of 'G-Loc - Air Battle', known as "R360 - G-Loc Air Battle" can be seen on Sega's R-360 flight simulator.


1. After Burner (1987)

2. After Burner II (1987)

3. G-Loc - Air Battle (1990)

4. R360 - G-Loc Air Battle (1990)

5. Strike Fighter (1991)

6. Sky Target (1995)

7. Sega Strike Fighter (2000)

8. After Burner Climax (2006)

9. After Burner - Black Falcon (2007, Sony PSP)


Designed by : Yu Suzuki (YU.)

Music and Sounds : Hiroshi Miyauchi (HIR)

Staff : (YAS), (IWA), (KEN), (PAP), (SAD), (GAK), (NAG), (MKA), (KYO), (MAC), (SUN), (SIM), (KOB)


* Consoles :

Sega Master System (1990)

Sega Mega Drive (1991)

Sega Game Gear (1993)

* Computers :

Amstrad CPC (1991, "G-Loc R360")

Commodore Amiga (1992)

Commodore C64 (1992,"G-Loc R360")

Sinclair ZX Spectrum (1992, "G-Loc R360")


Game's rom.

Machine's picture.

MAME Info:

0.88u3 [?]


- 0.100u1: Fixed rom names. Renamed (r360) to (glocr360).

- 0.100: Craig Walker added clone G-LOC R360.

- 0.95u4: Mike Coates added proper sprite roms (gfx2 $0/1) to G-LOC Air Battle.

- 0.94u2: Changed 68000 CPU1/2/3 clock speeds to 12.5MHz.

- 0.94: Fixed G-LOC Air Battle - Game now playable. Added Z80 (4MHz) CPU4, YM2151 (4MHz) and Sega_PCM (15625 Hz) stereo sound. Added gfx2 roms ($100000/1) from Strike Fighter, swapped cpu1/3 roms and fixed dipswitches. Changed description to 'G-LOC Air Battle (US)'.

- 0.88u3: Added G-LOC Air Battle (Sega 1988). Only the driver file, no video has been ported yet so nothing works.

LEVELS: 8 - 16 -18 (beginner - medium - expert)

Other Emulators:

* FB Alpha

Recommended Games (Airforce 3D):

Sky Raider

Red Baron

M.A.C.H. 3

Fire Fox

Future Spy

Us vs. Them

Zero Target


Top Gunner

After Burner II

After Burner (Mega-Tech)

Vs. Top Gun

Captain Sky Hawk (PlayChoice-10)

Air Inferno

G-LOC Air Battle

F-15 Strike Eagle

Strike Fighter

Air Combat

Air Combat 22

Wild Pilot

Wing War

Sky Target

Sega Strike Fighter

Romset: 21056 kb / 48 files / 5.52 zip

MAME XML Output:

       <game name="gloc" sourcefile="segaybd.c">
              <description>G-LOC Air Battle (US)</description>
              <rom name="epr-13170.25" size="131072" crc="45189229" sha1="01d18f6e4887633475baf610f455fad4ed7981e4" region="maincpu" offset="0"/>
              <rom name="epr-13169.24" size="131072" crc="1b47cd6e" sha1="694f489766f25e4c1f1fef6db79de347688ad80a" region="maincpu" offset="1"/>
              <rom name="epr-13028.27" size="131072" crc="b6aa2edf" sha1="07259fc48cd0f63fbd0a8dadf2294575cd790c85" region="maincpu" offset="40000"/>
              <rom name="epr-13027.26" size="131072" crc="6463c87a" sha1="882d980a1568ca777364822295e173224509f842" region="maincpu" offset="40001"/>
              <rom name="epr-13032.81" size="131072" crc="7da09c4e" sha1="09ec269c07f07549aa9851585eac0a5195e25bf9" region="subx" offset="0"/>
              <rom name="epr-13031.80" size="131072" crc="f3c7e3f4" sha1="927c0cf05e7a72d79fdf19bbe7b18bf167feccd6" region="subx" offset="1"/>
              <rom name="epr-13030.54" size="131072" crc="81abcabf" sha1="cb4e817d66a7f384aa9757758c51cd1bf7347dd0" region="suby" offset="0"/>
              <rom name="epr-13029.53" size="131072" crc="f3638efb" sha1="f82a46fc8616cbe0235746161c587e54adecfe50" region="suby" offset="1"/>
              <rom name="epr-13039.16" size="524288" crc="d7e1266d" sha1="b0fc4cc60a7e876ae2af343bba6da3fb926ea9c5" region="gfx2" offset="0"/>
              <rom name="epr-13037.14" size="524288" crc="b801a250" sha1="7d1f6a1f2022a4f302f22d11fa79057cf8134ad2" region="gfx2" offset="1"/>
              <rom name="epr-13040.17" size="524288" crc="4aeb3a85" sha1="5521fd2d3956839bdbe7b70a9e60cd9fb72a42f1" region="gfx2" offset="100000"/>
              <rom name="epr-13038.15" size="524288" crc="0b2edb6d" sha1="04944d6e6f020cd6d33641110847706516630227" region="gfx2" offset="100001"/>
              <rom name="epr-13048.67" size="524288" crc="fe1eb0dd" sha1="5e292fc0b83505eb289e026d4be24c9038ef1418" region="gfx1" offset="0"/>
              <rom name="epr-13056.75" size="524288" crc="5904f8e6" sha1="fbb01dadc796624c360d44b7631e3f1f285abf2e" region="gfx1" offset="1"/>
              <rom name="epr-13044.63" size="524288" crc="4d931f89" sha1="ff603f4347e4728a2849d9f480893ad0af7abc5c" region="gfx1" offset="2"/>
              <rom name="epr-13052.71" size="524288" crc="0291f040" sha1="610dee2a31445f4a054111b7005278560a9c0702" region="gfx1" offset="3"/>
              <rom name="epr-13064.86" size="524288" crc="5f8e651b" sha1="f1a957e68dea40c23f6a5a208358ec6d6515fe60" region="gfx1" offset="4"/>
              <rom name="epr-13072.114" size="524288" crc="6b85641a" sha1="143a4684d5f303cd30880a2d5728dccbdd168da4" region="gfx1" offset="5"/>
              <rom name="epr-13060.82" size="524288" crc="ee16ad97" sha1="6af38cfaf694f686f8e4223fb0b13cd350a8b9e5" region="gfx1" offset="6"/>
              <rom name="epr-13068.110" size="524288" crc="64d52bbb" sha1="b6eab546edb2443e5da6c94ec811ec5084212e60" region="gfx1" offset="7"/>
              <rom name="epr-13047.66" size="524288" crc="53340832" sha1="8ece8a71ea8ed80458121622307a137fb13931f6" region="gfx1" offset="400000"/>
              <rom name="epr-13055.74" size="524288" crc="39b6b665" sha1="d915db1d9bfe0c6ad3f7b447ce0cfdb42ec66ffe" region="gfx1" offset="400001"/>
              <rom name="epr-13043.62" size="524288" crc="208f16fd" sha1="ce96708ea9886af4aba8730cbb98c0ca72b96f57" region="gfx1" offset="400002"/>
              <rom name="epr-13051.70" size="524288" crc="ad62cbd4" sha1="09c008ce5cb97575a4312d2f22566bda72ecc4e2" region="gfx1" offset="400003"/>
              <rom name="epr-13063.85" size="524288" crc="c580bf6d" sha1="cb72970377ad2acce499059aa8155711b8da8a11" region="gfx1" offset="400004"/>
              <rom name="epr-13071.113" size="524288" crc="df99ef99" sha1="12648844c6e78dbd573b7bf0c981edb4d3012b58" region="gfx1" offset="400005"/>
              <rom name="epr-13059.81" size="524288" crc="4c982558" sha1="e04902af2740ca098cd6bbf1f57cb25562754a76" region="gfx1" offset="400006"/>
              <rom name="epr-13067.109" size="524288" crc="f97f6119" sha1="6f91fc28a1260ca4f1c695863717b27d1e45dc32" region="gfx1" offset="400007"/>
              <rom name="epr-13046.65" size="524288" crc="c75a86e9" sha1="8a180e1e2dd06eb81e2aa4ef73b83879cf6afc1b" region="gfx1" offset="800000"/>
              <rom name="epr-13054.73" size="524288" crc="2934549a" sha1="058b2966141d0db6bb8557d65c77b3458aca9358" region="gfx1" offset="800001"/>
              <rom name="epr-13042.61" size="524288" crc="53ed97af" sha1="22dffa434eb98e5bca1e429b69553a3540dc54a7" region="gfx1" offset="800002"/>
              <rom name="epr-13050.69" size="524288" crc="04429068" sha1="d7d8738809fd959ed428796b2bd1b589b74522c6" region="gfx1" offset="800003"/>
              <rom name="epr-13062.84" size="524288" crc="4fdb4ee3" sha1="d76065b9abe5c3cf692567d3a8746a231748340d" region="gfx1" offset="800004"/>
              <rom name="epr-13070.112" size="524288" crc="52ea130e" sha1="860cb3a1701066e595518c49b696b7b7a3994ada" region="gfx1" offset="800005"/>
              <rom name="epr-13058.80" size="524288" crc="19ff1626" sha1="029e231c3322467b5e2e52eea11df4f645460468" region="gfx1" offset="800006"/>
              <rom name="epr-13066.108" size="524288" crc="bc70a250" sha1="25189854cc01855b6e3589b85490f30dda029f86" region="gfx1" offset="800007"/>
              <rom name="epr-13045.64" size="524288" crc="54d5bc6d" sha1="18a301c9e6c4a352f300a438d85c6e6952bf0738" region="gfx1" offset="c00000"/>
              <rom name="epr-13053.72" size="524288" crc="9502af13" sha1="1a8c0fcd10f4c86af69c0107f486ca2eb8863f93" region="gfx1" offset="c00001"/>
              <rom name="epr-13041.60" size="524288" crc="d0a7402c" sha1="8932503c570ec49fdb4706f4015608bd060bafa0" region="gfx1" offset="c00002"/>
              <rom name="epr-13049.68" size="524288" crc="5b9c0b6c" sha1="17f2460b7dc0bd34dca3f90f2b553df4a7149147" region="gfx1" offset="c00003"/>
              <rom name="epr-13061.83" size="524288" crc="7b95ec3b" sha1="284aba4effd9d376a7a8f510a6f675fcb3393d09" region="gfx1" offset="c00004"/>
              <rom name="epr-13069.111" size="524288" crc="e1f538f0" sha1="55dc85faed1d5a7f2d586bac7e524c3fef3c53b4" region="gfx1" offset="c00005"/>
              <rom name="epr-13057.79" size="524288" crc="73baefee" sha1="6e86edc8229dd6112034a7df79f7341a4120dc6b" region="gfx1" offset="c00006"/>
              <rom name="epr-13065.107" size="524288" crc="8937a655" sha1="d38726a8a6fe68a002ac8d17f70ab83c2f814aa2" region="gfx1" offset="c00007"/>
              <rom name="epr-13033.102" size="65536" crc="6df5e827" sha1="ec260886a27ba00690490500fcf4ebf07fb35205" region="soundcpu" offset="0"/>
              <rom name="epr-13036.107" size="524288" crc="7890c26c" sha1="97e0678bb571de5cf732804f8909e5cbd24980f1" region="pcm" offset="0"/>
              <rom name="epr-13035.106" size="524288" crc="009fa13e" sha1="c7b224b471696b12332fc7c403c127b19c297df7" region="pcm" offset="80000"/>
              <rom name="epr-13034.105" size="524288" crc="cd22d95d" sha1="857aa320df0b3fb44fc8a5526ba5ee82cc74fe63" region="pcm" offset="100000"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="12500000"/>
              <chip type="cpu" tag="subx" name="68000" clock="12500000"/>
              <chip type="cpu" tag="suby" name="68000" clock="12500000"/>
              <chip type="cpu" tag="soundcpu" name="Z80" clock="4026987"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2151" clock="4026987"/>
              <chip type="audio" tag="pcm" name="Sega PCM" clock="4026987"/>
              <display tag="screen" type="raster" rotate="0" width="320" height="224" refresh="60.000000" pixclock="5376240" htotal="342" hbend="0" hbstart="320" vtotal="262" vbend="0" vbstart="224" />
              <sound channels="2"/>
              <input players="1" buttons="3" coins="2" service="yes">
                     <control type="stick" minimum="32" maximum="224" sensitivity="100" keydelta="4" reverse="yes"/>
              <dipswitch name="Difficulty" tag="DSW" mask="3">
                     <dipvalue name="Easy" value="2"/>
                     <dipvalue name="Normal" value="3" default="yes"/>
                     <dipvalue name="Hard" value="1"/>
                     <dipvalue name="Hardest" value="0"/>
              <dipswitch name="Demo Sounds" tag="DSW" mask="4">
                     <dipvalue name="Off" value="4"/>
                     <dipvalue name="On" value="0" default="yes"/>
              <dipswitch name="Cabinet" tag="DSW" mask="24">
                     <dipvalue name="Moving" value="24"/>
                     <dipvalue name="Cockpit" value="16"/>
                     <dipvalue name="Upright" value="8" default="yes"/>
              <dipswitch name="Allow Continue" tag="DSW" mask="32">
                     <dipvalue name="No" value="0"/>
                     <dipvalue name="Yes" value="32" default="yes"/>
              <dipswitch name="Credits" tag="DSW" mask="192">
                     <dipvalue name="1 to Start, 1 to Continue" value="64" default="yes"/>
                     <dipvalue name="2 to Start, 1 to Continue" value="192"/>
                     <dipvalue name="3 to Start, 2 to Continue" value="128"/>
                     <dipvalue name="4 to Start, 3 to Continue" value="0"/>
              <dipswitch name="Coin A" tag="COINAGE" mask="15">
                     <dipvalue name="4 Coins/1 Credit" value="7"/>
                     <dipvalue name="3 Coins/1 Credit" value="8"/>
                     <dipvalue name="2 Coins/1 Credit" value="9"/>
                     <dipvalue name="2 Coins/1 Credit, 5/3, 6/4" value="5"/>
                     <dipvalue name="2 Coins/1 Credit, 4/3" value="4"/>
                     <dipvalue name="1 Coin/1 Credit" value="15" default="yes"/>
                     <dipvalue name="1 Coin/1 Credit, 5/6" value="3"/>
                     <dipvalue name="1 Coin/1 Credit, 4/5" value="2"/>
                     <dipvalue name="1 Coin/1 Credit, 2/3" value="1"/>
                     <dipvalue name="2 Coins/3 Credits" value="6"/>
                     <dipvalue name="1 Coin/2 Credits" value="14"/>
                     <dipvalue name="1 Coin/3 Credits" value="13"/>
                     <dipvalue name="1 Coin/4 Credits" value="12"/>
                     <dipvalue name="1 Coin/5 Credits" value="11"/>
                     <dipvalue name="1 Coin/6 Credits" value="10"/>
                     <dipvalue name="Free Play (if Coin B too) or 1/1" value="0"/>
              <dipswitch name="Coin B" tag="COINAGE" mask="240">
                     <dipvalue name="4 Coins/1 Credit" value="112"/>
                     <dipvalue name="3 Coins/1 Credit" value="128"/>
                     <dipvalue name="2 Coins/1 Credit" value="144"/>
                     <dipvalue name="2 Coins/1 Credit, 5/3, 6/4" value="80"/>
                     <dipvalue name="2 Coins/1 Credit, 4/3" value="64"/>
                     <dipvalue name="1 Coin/1 Credit" value="240" default="yes"/>
                     <dipvalue name="1 Coin/1 Credit, 5/6" value="48"/>
                     <dipvalue name="1 Coin/1 Credit, 4/5" value="32"/>
                     <dipvalue name="1 Coin/1 Credit, 2/3" value="16"/>
                     <dipvalue name="2 Coins/3 Credits" value="96"/>
                     <dipvalue name="1 Coin/2 Credits" value="224"/>
                     <dipvalue name="1 Coin/3 Credits" value="208"/>
                     <dipvalue name="1 Coin/4 Credits" value="192"/>
                     <dipvalue name="1 Coin/5 Credits" value="176"/>
                     <dipvalue name="1 Coin/6 Credits" value="160"/>
                     <dipvalue name="Free Play (if Coin A too) or 1/1" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="supported" palettesize="24576"/>

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