Echoing Scrumbo's thoughts, multiple stages were a welcome surprise! And the little triangle rayman-like guy is great.
The character controls/jumps did feel a bit awkward to me though. Friction prevents jumping when pressed against a wall, and also you can "stick" to the sides of walls in the air. There's also something which seems like a bug: jumping while standing still results in not being able to drift in the air. The combo of these two makes it awkward to jump up ledges if you run into the ledge first, since you have to back up to jump up.
The way the jump works, with fastfalling after releasing the jump button, is also pretty unusual. It's maybe a little awkward when tapping the jump button and you just get this tiny little blip of airtime, but it also makes it difficult to throw a boomerang accurately in the air, since you don't get any hangtime to adjust your position/aim unless you're doing a full-height jump. An alternative could be allowing a jump button press in the air to fastfall - that way you can have releasing the jump button determine your jump height but leave a little hangtime to be more forgiving.
The melee attack feels good though, and I really like that you can hold the boomerang out at max distance and hit targets on the return path after moving.
I hope you also enjoyed the SummoningSalt BTT video recently lol