[Ichirin]

I'd say PSP, but i'm a teenager, so I'm intrested in the features of it. I have a buddy who has both, but he still plays most on his PSP, this are more mature games, so i think for small children it's best to take on a DS.

And for tips for games: Viva Pinata

It's really funny and stuff, though it isn't manga/anime style, it's just a regular game for all ages, it's famous in the us. Maybe you know it ?