So, I hate platformers - at least a lot of the ones I play in game jams. But yours was a nice take on things and at least level one didn't have my worst fear - endless places to fall to my death!
I liked the variety of movement, so the hold to jump higher, dash etc. I liked the simple playful aesthetic of the graphics.
I also liked the "debug mode" concept as a way of "glitching" through the game.