Click to place block. Space to change block. Buttons to run and clear, and arrow keys to move. Feel free to design your levels in this and then remix or screenshot to use. Just make sure to credit me. Grid snapping code from @Funut. If you want to use this for designing your levels, just take a partial screenshot (Mac: Command + shift + 4, Windows: Windows Logo Key + Shift + S, Chromebook: Control + Shift + Switch window key) Tags: #Make #Stamp #Creator #Pen #Screenshot