Arrow keys to move and paint the Whole grid by moving. When you move it will stamp itself in each square when you're finished, press flag to reset. remix and add more levels if you want.
@Vapradeep for collision Source: https://scratch.mit.edu/projects/387612984/ Google for grid and map idea all coding and ripping by me. 3 days took to make. day 1: sprite ripping for grid day 2: coding all day 3(release date): cleaning grid