Solid game mechanic here!
I really liked the simple controls and the complexity of the movement, I see a lot of potential specially as a mobile game.
The graphics where fine, I really liked the color switch when you pass the 5000 line (I got to 8032 so I don’t know if I missed other cool things?). My biggest complain here is the floor, I thought I couldn’t touch it first. Also the powerups look all the same to me (I’m a deutan color blind person so there were a few colors that look very similar to me). Your logo is great!
Regarding sound, I liked that you went for simple tones and different ones for the powerups that make you bigger or smaller, but I believe that’s something that can be improved.
A very nice entry! Thanks for participating in this LÖVE Jam. Have fun playing and rating.