Castlevania: Dawn of Sorrow is very good. Metroid Pinball is a great spin on pinball games. The Simpsons game has my work colleague hooked. Rune Factory is very good, if you like that sort of game. Tetris DS is the best version of Tetris ever, with great music and alternative modes, but I wouldn't spend £20 on Tetris

. Advance Wars is a real time-sapper, but a very good turn-based strategy game. Final Fantasy III is a great remake (but Final Fantasy IV will be out soon, and should be much better). Everyone also raves about Phoenix Wright: Ace Attorney - I haven't got around to playing it yet, but who am I to argue with popular opinion?