Nintendo DS games- recommendations

[usernametaken]

We'd like to get DD (4 this month) a new game for the Nintendo DS (super long car journey coming up).
She currently has 2 games and also plays one of mine. Her games are Catz (almost completed) and Animal Genius (completed). She also plays French Word Coach .
She isn't into girly things, has no interest in TV characters...she hardly knows any, so what would be a good game to get her next? She reads fluently so anything with text to read isn't a problem, she is also a maths and puzzle whizz, so problem solving games wont be a problem.
What can you recommend?
Many thanks

My dd liked animal crossing (except for the angry mole )

Mario Kart is good and also Super Mario Bros

DS likes Mum I Did It - there's a girls' version out too - lots of puzzle type games

Professor Layton, Tetris DS, Animal Crossing : Wild World, Zoo Keeper, Viva Pinata, Mystery Detective. She might like one of the Imagine games but I'm not sure the content is sufficiently interesting for a long journey.