REZ and Ikaruga.
What else is there to say really. My favourite console of all time. I so wish they were style making games for it. I picked up Border Down and I wish I had picked up Trizeal so I could have the last ever game. Just while writing this post I remembered Propellar Arena. I actually really enjoyed that game, shame it never got released and of course Power Stone! I still have all of my import DC games and consoles. Nothing beats REZ in VGA through a booming sound system! One of the most addictive games ever which was only recently rivaled by Lumines, which was also by Tetsuya Mizuguchi. AAAH! Cosmic Smash! Awesome game and Virtua Tennis, Virtual On, Takoushi Battle, F355 Challenge, Marvel vs Capcom 2, Shenmue, Dead or Alive 2 (technically superior to the ps2 version), Soul Caliber, Bio Hazard: Code Veronica, Jet Set Radio, Crazy Taxi and many, many more.
As you can probably tell I'm writing this as I think it. Sorry if it's hard to follow.