Thanks for the feedback, I bought Kirby Canvas Curse. I now have quite a good collection for the whole family

(Pity only one Nintendo DS Lite LOL)
We now have Nintendogs, Mario Karts, Animal Crossing, Yoshi Island, Pokemon Mystery Dungeon - Blue Rescue Team, Electroplankton and Kirby Canvas Curse.
But I must admite that my 3 year old son only stays glued to nintendogs. It's really a spectacular show watching him play when he's on his own. He laughs out loud and speaks a lot, and just simply has a great time, that I really would love to find another game for him.
He likes animal crossing but gets frustrated because he can't catch fish without help and fills his pockets rapidly picking up shells and fruit, and selling at the store is still dificult for him to do without help.
He also likes Electroplankton but the novalty has worn off a bit.
He didn't take to Kirby as I expected
Guess I just have to wait for him to grow up a little more
Thanks again, If anyone else has young kids, oppps maybe I should say younger brothers, let me know what games they prefer to play.