How to start the project in 1 easy step: 1. Press the green flag. Just a test I made for no reason. Use it for a game if you want. I think it works pretty well for a quick test project. Here's how it works: Different sprites quickly use Pen to draw a line -starting from the player- until they hit a wall. Then their Pen color turns black, and they keep going until they hit the edge, simulating darkness.