New Bosconian (Namco [ever finished/released?], 82)

Assassin (Namco [ever finished/released?], 86)
Developed in the United States.

Alice in Wonderland (Namco [system 1], 88)
Alice in Wonderland is in MAME under the Japanese version Marchen Maze. It's the last known undumped System 1 variant, and so is on the Most Wanted list.

Bubble Trouble (Namco [system 2], 92)

Final Lap 3 (Namco [system 2-derivative], 92)

Pictures taken from Mar's homepage.
Info from WHATSNEW.TXT:
Not working due to incomplete emulation but enabled anyway.

Driver's Eyes (Namco [system 21], 87)
Winning Run (Namco [system 21], 88)

Pictures taken from Arcade Flyer Archive
Winning Run Suzuka Grand Prix (Namco [system 21], 89)

Pictures taken from Arcade Flyer Archive
Winning Run 91 (Namco [system 21], 91)
Info from Phil:
Winning Run '91 runs on prototype System21 hardware, and as such is quite different from the other titles. It uses a 3rd 68k CPU to render graphics to a bitmap layer (there is no sprite chip), but still appears to rely on DSPs for 3d graphics.
Air Combat (Namco [system 21], 92)

Picture from the MAME WIP page. For the full size image, click on the above picture.

Pictures from MAME testdriver, courtesy of beppe.
ShimDrive (Namco [system 21], 92)
Cybersled (Namco [system 21], 93)

Picture from the MAME WIP page. For the full size image, click on the above picture.

Pictures taken from Emulation Status.
Game description from Duncan:
CyberSled is a distant descendant of Battlezone. Two players (versus each other or the computer) duke it out in hovertanks inside a closed arena. It featured selectable vehicles, lots of multiplayer options and a training mode for getting used to the dual-joystick controls. Graphics are similar to Solvalou in that they're untextured polygons. The game was ported to the PlayStation when that system was first released a couple of years later.
Of the System 21 games, Winning Run '91, Solvalou, Air Combat (US and Japan), Starblade, and Cyber Sled are dumped.
More information (R. Belmont):
System 21 hardware lineup is:
CPU Board: 2 68000 CPUs (master/slave for main game), 1 6809 for sound (the CPU board itself is the same as Namco System 2 already in MAME, including the same memory map, sound chips and interrupt controller chip. The video part of the memory map is of course different though).
Math board: *5* DSPs for 3D math (might be TMS32c020s, but I can't find my S21 board scans now to double-check.) Each DSP has it's own RAM and ROMs IIRC.
Video board: custom undocumented Namco polygon generator hardware
Have fun ;-)

Eunos Roadster Driving Simulator (Namco w/Mazda, 89)

Pac Attack (Namco [NA-1 system], 92)
There are good Super Famicom versions of this Tetris-style game. The gameplay is exactly the same between Cosmo Gang the Puzzle and Pac Attack, which leads me to believe Pac Attack is simply the American version of the game with different graphics and music.

Ace Driver: Victory Lap (Namco [system 22], 94)

Picture from the MAME WIP page. For the full size image, click on the above picture.

Air Combat 22 (Namco [super system 22], 95)

Pictures taken from Arcade Flyer Archive
Dirt Dash (Namco [super system 22], 95)

Pictures taken from Arcade Flyer Archive
Cyber Commando (Namco [super system 22], 95)
Alpine Surfer (Namco [super system 22], 96)
Aqua Jet (Namco [super system 22], 96)
Tokyo Wars (Namco [super system 22], 96)
Armadillo Racing (Namco [super system 22], 97)
Downhill Bikers (Namco [super system 22])
The "super system 22" game "Prop Cycle" is in MAME, but none of these other games have been supported yet.
Why they're not emulated (Stroff):
There is work being done to emulate the actual BIOS, which will add sound to the Super System22 games, help answer questions about sys22 sound, and remove the need for game-specific I/O hacks.

Tekken 2 (Namco [system 11], 95)

Pictures taken from Emulation Status.
Some graphics problems in the Zinc emu. Only version C (if it exists) is a most wanted ROM - versions A and B are dumped.
Soul Edge / Soul Blade (Namco [system 11], 96)

Pictures taken from System16
Only version B is a most wanted ROM - versions A and C are dumped.
Gunbarl (Namco [system 11], 99)
Also known as Point Blank 2, which is supported in MAME.

X-Day 2 (Namco [NA-2 system], 95)

Pictures from the MAME WIP page.

Time Crisis 2 (Namco, 97)
From WHATSNEW.TXT:
Skelaton driver, does nothing.

Ren-ai Quiz High School Angel / Seishun Quiz Colorful High School (Namco [unreleased prototype, System 10 hardware], 99)

Derby Quiz My Dream Horse (Namco [System 12 hardware], 98)
Soul Calibur (Namco [System 12 hardware], 98)
Super World Stadium '99 (Namco [System 12 hardware], 99)
Tekken Tag Tournament (Namco [System 12 hardware], 99)

Pictures from Guru's page. Click for the full size picture.
There has been progress in the Zinc emulator with Tekken Tag Tournament.

GP500 (Namco [Super System 23 hardware], 99)
Final Furlong 2 (Namco [Super System 23 hardware], 99)
From WHATSNEW.TXT:
Preliminary driver 'Hopeless Hardware' doesn't do anything yet.

開運クイズ [Kaiun Quiz] (Namco, 99)

Pictures taken from Arcade Flyer Archive

Super World Stadium 2000 (Namco, 2000)

Mr. Driller 2 (Namco [System 10 hardware], 2000)
Gekitoride-Jong Space (Namco/Metro [System 10 hardware], 2001)
Kotoba no Puzzle Mojipittan (Namco [System 10 hardware], 2001)
Mr. Driller G (Namco [System 10 hardware], 2001)
Star Trigon (Namco [System 10 hardware], 2001)
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