sumotori. there's a secret mode where you can hurl blocks at the white guy too. you do it by hitting one of the fence blocks with a cube at the title screen. it's on the right side. (as opposed to left.)
Hmm, what about Frets on Fire? It's game quite similiar to guitar hero :d
I don't play it a lot, but sometimes... it's fun game. Here are three fast made screenies: