I assume the pink area goes on roughly forever, though.
It's 1000 blocks wide, and I did that to test for any slowdown (which shouldn't even exist, due to collision and rendering optimizations).
You forgot to make the jar executable. Easy enough to fix, though, just a byte change in properties, just something to keep in mind.
Oops, missed that.
Can't jump properly when next to walls. Presumably due to friction, but INCREDIBLY annoying.
Just let go of left/right, it shouldn't be a problem if the walls aren't accelerating.
The bouncy platforms are honestly pretty unreliable - it never really felt like I was in control of making a big bounce happen. Also the bottom platform bounced me
higher than the top could.
That's the jump code: you jump if you are pressing the jump key while pushing against something (and haven't jumped before using the same keypress). Just hold down Jump while you're bouncing and you'll do a big bounce. Also, the "lower trampoline bouncing you higher" thing is because the lower trampoline has higher bounciness.
"Climbing" single walls - is this intentional? It seems to be the only way to make it up to the accelerator platform. It looks like you want us to jump from wall to wall, but that's actually impossible.
I built those walls to test wall-jumping, but you need to be really fast with the jump button if you want to zig-zag (I can't do that either). Also, the accelerator platform is actually only a platform with greatly reduced friction, but the player has no acceleration limit while on the ground. I'll have to get around that somehow.
Here's an alternate version without the one-jump-per-press restriction. You can zig-zag now, but it's horrible to use in the static tilemap (the non-moving pink thing).
I don't understand what's going on... so many flashy colors and shapes and flickering
I can't show you in a screenshot, because it just seems to be frames rapidly changing, but what happens is that pressing "right" makes me warp to some spongy pink structure, and pressing "up" makes me flicker up and down.
I put an FPS cap in the updated version. Try that one out.