I like the concept but I really struggled with the controls. Others have already mentioned the issue with not being able to jump. Personally, I also found the player character too stiff. It is very slow in gaining momentum and the level design often doesn't give the player a lot of space to gain that momentum which makes some jumps harder than necessary. If you fine-tune the controls and make the visual language a little clearer and more intuitive (I really didn't know what to do at first), this has potential.