Love the game. Really simple mechanics implemented in interesting ways to make a challenging and addictive experience that frustrates but makes you want to play more.
I'd actually be interested to see your movement code as your movement felt a lot cleaner that the movement in my game
One thing that wasn't super clear to me until I worked it out for myself were the coloured gravity zones. I know you made reference to this at the start of level two but some additional clarity would probably go a long way.
Other than that. Great game would love to play more :)