Wow, I'm honestly really surprised with how much fun Cman is to play. He's super fast but still controllable, his abilities linking with one another helps you keep the flow and almost begs you to speedrun with them, and he's super small and cute.
If anything, my only real critiques would be that he could use with some more visual flair - perhaps squash and stretch? I also ran into an issue where crashing into walls would give me a random monitor for some reason, namely in CEZ1's bridge segment.
My last suggestion would be to let Cman use the cloud jump when you dash after a jump. I noticed you can jump while your dash is charging and then use the cloud ability which helped a lot, so it'd be cool if it you could do the first trick.
All in all, an amazing rework of an old work. Congratulations and Welcome Aboard!