Here is a demo that shows off my new chain physics engine.

Very nice!

One complaint is that there's a bit too much whiplash. Other than that though it's really cool

I still have a "fall through sloped platform" glitch that I have to fix.

Nice! I had a lot of problems just to get a background and sprite to show up.

Screenshots please, I don't have an EMU handy...

Do you think a game like "Angry Birds" with a modern physics engine would be possible on an SNES using mode 7 graphics?

Mode-7 can only rotate 1 layer at a time.  In order to have multiple rotating objects, you either have to used prerendered rotation, or have the CPU rotate every sprite in RAM beforehand, via software rotation.  I made a software sprite rotation algorithm a few years ago, but I never found the chance to use it.

Awesome! So this means Angry Birds would work better on the SNES than it does on the Genesis?

We will be witnessing the first multiplatform game to be better on the SNES since 1991, a feat once considered impossible.

Now with rotating sprites.