Current/Past Systems:
2600 - Missile Command, Millipede, etc...
NES - Megaman 2 & Super Mario Bros.
Master System - Wonderboy 3 & Phantasy Star
Genesis - Contra: Hard Corps & Streets of Rage II
SNES - Chrono Trigger & Earthbound
PS1 - Metal Gear Solid
Saturn - Panzer Dragoon Saga
N64 - Ocarina of Time
Dreamcast - Soul Calibur & Skies of Arcadia
PS2 - God of War & Metal Gear Solid 3
GameCube - Metroid Prime
PS3 - Metal Gear Solid 4 & God of War 3
Gameboy - Tetris
GBA - Castlevania: Circle of the Moon
PSP - Syphon Filter: Dark Mirror & Metal Gear Solid: Portable Ops
Future Systems:
DS - Professor Layton
Game Gear - Shinobi II: The Silent Fury & Ristar
Sega CD - Snatcher & Dark Wizard
TurboDuo - Gate of Thunder & Lords of Thunder