it took me long time to understand baloons are cutting the lines. also keyboard diagobal controls are bad. needs analong controls. i finished both levels, but my fingers ache. music is awesome, did you make it?
here are some ideas
-paint brush ui is useless, never looked at it. it dont know what it is for
-levels only have baloons, add some other stuff like barriers, jump pads etc
- make levels big and explorable. all skate games have secrets and discoverable stuff to make them exiting