This is just a wall collision test from an idea that's been nagging on my mind. -Running into the walls on the left/right, you will stop. -Arrows to move. -All code is by me (@TacticalBlob) -Feel free to use the code, just remix and give credit. While it seems strange that this simple code had stumped me before now, let me explain: For a while I couldn't get walls that stopped you (you didn't go through it) from both sides. I simply used two slightly different colors, and have code for both of them. In fact, in my wall jump tutorial (https://scratch.mit.edu/projects/477991145/) I used the different color trick, which you can clearly see. The code I used in this has been in the back of my brain for a while, and I tried it today. It worked surprisingly well, and I'm very happy with this.