I had a lot of fun ! I cleared the game which does not happen often so you got me engaged.
My husband said he was annoyed with the controls and would have preferred having gravity and jump inverted.
I would've made it possible to jump with the top arrow too!
If I udnerstood right, that was a solo game? So props on you. This would've been even better with more art/sounds I think ! But you can make a full game out of that I think.