...Oh, yes, of course. How silly of me.
For people sticking to the platforms, I'd first have to see how Jax made them work. I haven't actually downloaded the thing yet. No need to worry about sprite rotations much, since people are used to scaling Item 1 anyway. I might even give spriting them a try myself.
And yeah, it's basically replace two colors and that's it. Pretty simple, but it would be intriguing. For example, one can make the lava change to the cooled off floor through a script, which would activate at 5 frags left. This would allow for getting at a few other places.