Follow the instructions in the game and get Viola (you, the purple dot) to the green. NOTE**** DO NOT click "See inside" and go between levels or else the game will glitch. There is a glitch on level 10, I'm trying to work it out, sorry it might take a while.
I used the gravity from MajesticPie's "Quest For Doorknob!" but edited it a little since I still am not entirely sure how to make my own gravity... but I'm working on learning!