Funny and fun game. I accidentally found Ending 1 first and got confused. Then I spent almost 30 mins on Ending 2 because I punched every rock and was stuck at 9, and apparently I had just forgotten to pick up the key from one of the platforms at the very tippy top XD Overall great idea, just needs a bit more polish with the controls, and maybe the textures (I know you're going for a low poly style, but it would still be nice to see at least a semblance of properly aligned textures to reduce the egregious stretching like in the longer polys).
If you ever have plans of revisiting this, I'd love to see it fleshed out into a proper old school PS1-type action platformer like Croc or Spyro. Would be super dope. I love Gigi <3