Interesting take on the Rayman series hehe!
Some bugs I found:
Clicking the options led to me being stuck in the main menu and had to restart to be able to play the game.
After pausing the game and unpausing, every time I pressed space and the pause menu pops up again.
And just my personal opinion, if you are going to map the RMB to dash, why not use the LMB to attack? Seems like a strange decision to have the attack be "E" instead of the other mouse button.
Overall it seems like a very neat idea that needs some polish.