Here's the catch, you can only name 1 per console, hard, I know.
here are mine.
NES: Castlevania 2
Gameboy: Link's Awakening.
Super NES: Final Fantasy III
Nintendo 64: Ocarina of Time
PS1: Final Fantasy 9
Sega Saturn: Dragon Force.
GBA: Metroid: Zero Mission.
Dreamcast: Phantasy Star Online.
PS2: ICO
GameCube: Wind Waker
Xbox: Knights of the old Republic
Wii: Mario Kart Wii
DS: The World ends with you
360: Halo Reach
PS3: Skyrim.
3DS: Ocarina of Time 3D