Ok, here goes! I'm gonna be lazy and instead of typing everything I'm just gonna copypaste the names from an on-line list. lol
Bangai-O (Awesome shoot em up, if you liked the DS game you'll love the DC cersion)
Border Down (Shoot em up, has it's own unique style and a good difficulty level)
Bust-a-Move 4
Capcom vs. SNK: Millennium Fight 2000
ChuChu Rocket! (Great puzzle game but short cos the on-line isn't available any more)
Confidential Mission (Virtua Cop/Time Crisis style game)
Crazy Taxi (much preferred the first game to the second)
D2 (Adventure game, not played it myself but heard good things)
Daytona USA 2001 (It's not an arcade conversion but it's fun)
Dead or Alive 2-Limited Edition (Fighting game! Better than the PS2 version)
Fighting Vipers 2 (Fighting game, not brilliant but still fun)
Gauntlet Legends
Giga Wing 1 + 2 (Excellent shoot em ups)
Headhunter (Not zombie related but Resi Evil style gameplay)
The House of the Dead 2 (A little easy but fun)
Ikaruga (Brilliant shoot em up, Nanostray on the DS is alot like it)
Marvel vs. Capcom 2: New Age of Heroes
MDK2
Metropolis Street Racer (The original Project Gotham Racing!)
Power Stone 2
Puyo Puyo DA!
Re-Volt (Racing game)
Resident Evil Code: Veronica
Sega Smash Pack (Golden Axe, Sonic, Virtua Cop 2 and others)
Shadow Man
Shenmue 1 + 2 (Not a huge fan but hugely popular games)
Silent Scope (Sniper game, great fun!)
Soulcalibur
South Park Rally (Not overly great, but fun in short bursts)
Street Fighter Alpha 3
Street Fighter III: Third Strike
Super Puzzle Fighter II Turbo
Super Street Fighter II X
Tokyo Xtreme Racer 2
Tony Hawk's Pro Skater 1 + 2
Virtua Fighter 3TB