The first game you owned for each console you owned.

[Ascended_Saiyan3]

Atari 2600 - Superman
NES - Mario
Colecovision - Smurfs

SNES - (can't remember)
N64 - Mario Kart/Killer Instinct Gold

Dreamcast - Sonic Adventure

Xbox - Halo
Xbox 360 - Dead or Alive 4

Playstation 3 - Ridge Racer 7/Resistance

I don't count handhelds as consoles (I have PSP).