Okay, here's the situation.......

I own:
Advance Wars - Dual Strike
Castlevania - Order of Ecclesia
Super Mario Bros
Hotel Dusk Room 215

I am considering buying:
Tetris DS
Contra 4
Call of Duty - World at War
Mario Kart

What else can DSphiles recommend?

If you can think of any jumpy jumpy platformy games in the vein of Super Mario Bros, that would be great. Alternatively, (and I realise this is a tall order), but are there any convincing FPS type games on the DS?

KTHXBAI