Before they made the excellent Canabalt, Adam Saltsman and Danny Baranowsky made a game called Gravity Hook. It was like Bionic Commando vs Peggle. Anyway, they're remaking the game in "HD", and you can play it right now.
The original has been overhauled in almost every way, from graphics to sound to controls, making for a game that's not only easier on the eyes, but easier to play as well.
It'll be out on iPhone "soon", but if you want to play it now, you can do so at the link below.