Hello,
I have tried out your game. I think it is an interesting concept! It's a bit hard to play and sometimes confusing to a novice like me but I might not be part of your target audience as I don't usually play that type of game.
From what I understood, you are able to double jump and triple jump when you're near a wall or trying to get on top of a platform (like a pillar) and that you also get one jump if you're one of those wall platforms. But while playing it was often unclear to me if I still could make one more jump or not and sometimes I could double jump when I thought I had only one jump left.
I think adding animations like the hands of the player could help understand which kind of jump the player is actually performing, aswell as accentuating that "parkour" sensation I believe you want to convey with the game. I also felt unsure of what my progression was in the game as I think there were no indications as to which level I am currently in.
The core concept seems to me like it has potential. With a bit of polishing (sounds, hands animations, more visual feedback and feeling of progression for the player) I think it might become a cool game!
Good luck with your project!