Hey Guys ! I discovered that you can kickflip out of the extralevel ceilings. I got on top of the map in every chapter possible (cube in extra level) and realized that you can get the cube with you. Sad thing is that it seems you can only get back into the map at gates from mechanical doors, which arent existent in important levels. So yea, we can get out of bounds with a cube but we cant get back in the map usefully...