Recommended Nintendo DS games for 6 year old son

[hippysair]

We've bought our son a Nintendo DS, this year for christmas. It doesn't come with any games, so we need to buy him some to go with it, and i haven't got a clue!
I know he's played on a cousin's one and enjoyed a Peppa pig game, but that's about it.
Any other suggestions?

Mariocart, Star Wars or Harry potter Lego, Super Mario

Lego Batman. My DS (and I) love it.

Dd loves viva pinata and it was very cheap which is an added bonus

DS is 7 and loves

This

This (although there's a sequel due out in a couple of weeks I think)

And this

The Spongebob one is great for imagination too I find. I make him do the Junior Big Brain Academy too,as I'm a meanie Mummy