Dirtbike (Atari [prototype], 7?)

Quiz Show (Atari/Kee, 76)

Pictures taken from System 16.
Questions and answers are stored on a multi-track tape.
More information from GregAC5A:
Quiz Show was mentioned by Al Kossow (back in late 2003) to be a cpu controlled game. Al posted the cpu info on MAME board. I recalled thread since MAMEdev "frotz" was asking about the hardware of Quiz Show. I don't know if Quiz Show has been dumped or not. The tapes would also require being processed since they contain the data that displays questions on the screen.

Fast Draw (Atari/Arcade Engineering [ever released?], 77)
Jack Pearson of A.E. has said they developed this game and sold it to Atari, it's not the same as the American Laser game or the poker machine of this title.

Dominoes 4 aka Dominoes cocktail (Atari, 77)
Why it's not emulated (Stefan):
No dump.

Smokey Joe (Atari, 78)
In MAME as Fire Truck. You need to adjust dipswitches to change it to Smokey Joe.

Captain Seahawk (Atari [prototype], 78)

Solar War (Atari [prototype], 79)

Akka Arrh (Atari [prototype], 80)

Missile Command Deluxe (Atari [prototype], 81)

Star Trap (Atari [prototype], 81)

Interchange (Atari [prototype], 82)

Nightmare (Atari/GCC [prototype], 84)

Picture leaked out by Safestuff.

TX-1 (Atari/Namco, 84)
Racing game that had three screens side-by-side, creating a panoramic view. A short movie of the game is at the Starcade Page.
TX-1/Buggy Boy Update from Phil Bennett:
The main issue is the (documented) arithmetic chip and its complex interface with the slave CPU. The sprites and road drawing rely VERY heavily on it.

BMX Heat (Atari [prototype], 91)

Marble Madness 2: Marble Man (Atari [prototype], 91)

Race Drivin' Panorama (Atari [limited release], 91?)
This version added side monitors and a stock-car track to the standard game.

Danger Express (Atari [prototype], 92)

Space Lords (Atari [GX2 hardware], 92)

More WIP pics from Aaron Giles.
A link-up space battle game that you could play with your friend as a gunner. Though it was a 3D space battle game, it didn't use polygons.
Why it's not emulated: (Aaron Giles)
This is the first Atari game to use a 68020 processor. Other games to follow on similar hardware include Moto Frenzy, T-Mek, and Primal Rage. The video and sound hardware is quite similar to the previous games (Guardians of the Hood and Road Riot 4WD). However, the SLOOP chip appears to have gone away, only to be replaced by something equally sinister. Space Lords uses this chip to produce the palette for the sprites, which is why all the screenshots have incorrect colors. The protection chip is also used to produce some in-game parameters, making it nigh impossible to play without accurate emulation.
Moto Frenzy (Atari [GX2 hardware], 92)

WIP pics from System 16.
Why it's not emulated: (Aaron Giles)
Runs on identical hardware to Space Lords. Again, the protection device is not understood well enough to give accurate emulation. Graphics are drawn correctly, but the colors are incorrect and gameplay is fouled up.
More information from Aaron Giles' homepage:
The GX2 system follows up the G42 system by swapping out the aging 68000 processor for a new 68EC020. Apart from that, the systems are basically identical. The known released GX2 games are Space Lords and Moto Frenzy. There was also an unreleased sequel to Road Riot 4WD called Road Riot's Revenge. These games are all protected with an unknown game-specific device that is used in varying ways game-to-game. In Space Lords, for example, it is used to munge the palette. The fact that you see mostly correct colors in the screenshots below means that I have done some work on getting things working, but it's far from being playable.

Cyberstorm (Atari [prototype], 93)

Metal Maniax (Atari [polygon], 94 prototype)
Why it's not emulated: (Aaron Giles)
Demolition derby-style game on the next generation hardware. Metal Maniax is a fairly major evolution of the [Hard Drivin hardware] design. It uses pretty much the same parts, but there's a number of large FPGAs on there that probably handle the texture mapping. The basic system is:
* a 68EC020 (upgraded from the 68000 on the earlier games)
* a pair of TMS34020's (upgraded from the TMS34010 on the earlier games)
* four DSP32C's (as used in Race Drivin')
* a TMS320C31 (probably for sound; I'm guessing it uses the CAGE system like Primal Rage)
* an ADSP2105
Now that system drives two players, so I'm suspecting that there's only one TMS34020 and two DSP32C's per player. Because it's all integrated onto one board, I don't know if it's possible at all to separate out the functionality, especially because there's just one 68EC020 driving the whole shebang.
At some point, I'll probably try to plug it all in, but I strongly suspect you will never see it emulated fully.

Beavis and Butt-Head (Atari [prototype, 3DO hardware], 95)
Die Alien Scum!! (Atari/Time Warner Interactive [prototype, 3DO hardware], 96)

Primal Rage II (Atari [prototype], 96)

San Francisco Rush: The Rock (Atari [Seattle HW], 96)
San Francisco Rush: The Rock Wavenet (Atari [Seattle HW])
A special version of the game that allowed network play over a broadband line specially installed at the arcade.

Juko Threat (Atari, 98)
In MAME under the name Tenth Degree.

San Francisco Rush 2049 (Atari, 98)
Road Burners (Atari, 99)
War: The Final Assault (Atari, 99)

Area 51: Site 4 (Atari, 98)

Pictures taken from The Guru's page.
Info from Smitdogg
Area 51 site4 The PCB looks sort of like a PC mobo, and apparently uses a Cyrix processor.

Missile Combat (Atari/Videotron bootleg, 8?)

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