The "hidden gems" thread made me think about these. We used to link up two monitors, 2 PlayStations, and play these games head-to-head. I think this is all of 'em... am I missing any that you can tell?
Andretti Racing
Armored Core
Armored Core: Project Phantasma
Assault Rigs
Bogey Dead 6
Burning Road
Bushido Blade
Bushido Blade 2
Blast Radius
CART World Series
Command & Conquer: Red Alert
Command & Conquer: Red Alert/ Retaliation
Coolboarders 2
Cyberspeed
Dead In The Water
Descent
Descent: Maximum
Destruction Derby
Doom
Duke Nukem: Total Meltdown
Final Doom
Formula 1
Formula 1 '98
Formula 1: Championship Edition
Grand Tour Racing
Grand Tour Racing '98
Grid Runner *
Independence Day
Krazy Ivan
Micro Machines V3 *
Motor Toon Grand Prix
Need For Speed
Red Asphalt
Ridge Racer Revolution
R4: Ridge Racer Type 4
Rogue Trip
San Francisco Rush
Streak Hoverboard Racing
Test Drive 4
Test Drive: Off Road
Twisted Metal 3
Toca 2
Wipeout
Wipeout XL
Wipeout 3
* Reported to be "troublesome". If you can confirm or deny that these titles work OK please let us know.