TUAW's Daily iPhone App: Diversion

Diversion may not look like much, but it makes up for any shortage in graphical quality (yes, the characters do look that goofy) with a solid bunch of gameplay that's surprisingly fun despite the simple premise. The pitch here is "a platformer on rails," so you play as a 3D character who's always running forward through a world, and it's just up to you to jump at the right times. Again, that sounds simple, but it's surprisingly interesting with lots of strange jumps to make and figure out across over 100 levels.

There's also an amazing amount of content to unlock -- there are over 150 different characters to play with and plenty of secrets to find across the game's 3D worlds. Normally I'd say it's unfortunate that there's no Game Center involved, but in this case, it's not really needed as the challenge is simply just passing the levels rather than racing through them.

Diversion does an excellent job of providing just that, and especially at its current price of just US 99 cents.