In case you've never heard of Ben 10 before, he's a Cartoon Network character who has a special watch that lets him transform into a variety of aliens and robots. It's not perfect, but it's clever and very pretty.
This new Ben 10 entry for the DS works out almost all the problems with the previous game. Both games were fun but frustrating, featuring inconsistent 2D platforming and shallow combat. It wasn't long ago that I reviewed both the Wii and Nintendo DS versions of Ben 10: Alien Force.