In this project you can create your own level by click on the area you want to change to and if its currently air, then it will become ground, and if its currently ground, it will become air. Of course at the same time, it starts with a custom stage, and it doesn't use any sensor blocks (a.k.a. touching color blank and such). Instead it looks if the array section below the ball is ground, and if so it will stop. It also senses in all 4 directions. It works pretty much nearly perfect!
