I think it has potential. Music and character art is nice.
Main suggestions:
- You should put some screenshots on your game page! I had no idea what to expect until I booted it up.
- Control mapping is pretty weird. I want to be able to use my abilities while moving, so I ended up with my hands crossed over, using A/D with left hand and Q/E/space with right hand.
- When you flip gravity in the air, your momentum also flips and you go insanely fast. I would consider making it zero out your vertical speed, or using constant fall speed, same as VVVVVV, but that might be hard to make work with jumping.
- The rooms feel larger than than they need to be. I think it could feel less sparse and easier to understand if they were smaller
Nice job!