What games made you buy each system you own this gen?

[DeadEye]

Wii

Legend of Zelda: Twilight Princess

X360

Red Dead Redemption

DS

I didn't need any game's to convince me to get a DS but some that captured my interest early on were Super Mario 64, Nintendogs, WarioWare Touched and Yoshi Touch & Go (which I think is a better game than it's given credit for).