Hey just thought I'd share today's attempt at a physics based platformer
http://dl.dropbox.com/u/3317708/physicsplatform/index.html
Press A to enable XBOX Pad or press any key on keyboard to use keys.
Keys:
Arrows - Move / Jump / Jetpack
A - fire
Controller:
Left Stick - Move
A - Jump
Left Trigger - Jetpack
Right Trigger - Slide
X - Fire Shuriken
I have zero intentions of making a Ninja game, I just got the graphic off TigSource.
I think the results are okay, it behaves well in a fully physics based environment, moving boxes around and such. And it controls quite tight, not too floaty or rigid.