I've been trying to make a GOOD Sonic engine the past couple days, and I've been having problems with the collision, because it works, but is jittery. I am a Scratch Veteran, and I used my usual script that requires a "run screen without refresh" custom block. but since I can't do that here, what is an alternative? Or, at least a way to make it better?
Wrap your script in a WARP block to make it run without screen refresh.
You could use the various Sonic engines on Scratch as inspiration. I can't wait for the final product!
I use Scratch too! My Scratch username is the same as here.