Man, ive been stuck on 13 all day! I cant figure it out. I thought I was onto something when I push the second crate and assumed that I was supposed to jump on it mid-air. It did nothing for me. I kept trying and keep falling every-time. Anyone know how to get past 13?
 "Brain Diet"){kind=icon}
 "Greedy Mimic"){kind=icon}
 "Exit/Corners"){kind=icon}