I've found that iOS isn't the best platform (so to speak) for platformers. I love games like Mario and Sonic, where you drive a little character around, jumping between platforms and collecting goodies. The lack of physical buttons on Apple's touch screens (and let's face it: cheaper production values) make it hard to pull off a great platformer. Often times developers are forced to cut corners or really stretch to generate new ideas.
Not so with Paper Monsters (US$.0.99, universal). Crescent Moon's latest is a traditional platform game (complete with double jumps and warp pipes), and it plays that role perfectly. The little box-headed character can navigate the colorful and nicely-designed environments with skill thanks to some well-turned controls. The whole experience shines through the iOS platform right back to the classic days of 2D platforming.
There are some new tricks, too. At times, the action feels more like Little Big Planet than Mario's old adventures, with solid 3D graphics and some interesting twists, like playing in the background scenery.
Paper Monsters is a lot of fun, and there's plenty to keep you engaged through all 16 levels. It's available as a universal version right now for just 99 cents.