Arrow keys - that's all! Can you make it to 2048? Let me know if you find a glitch somewhere. Also, look inside and see if you can figure out how it works. I tried to keep the code simple (idk if that worked though :( ) Feel free to ask, I'd love to clarify or add comments to help understand the code
There's a really popular Scratch version of 2048 by JeremiahMacDonald already (https://scratch.mit.edu/projects/19554088/), but I was inspired to try my own. This works differently: Instead of computing the game board in a big list, here, the tile sprites are all clones, and they do all the moving/working. It's this really bottom-up way to implement a game that Scratch lets you do, and I love it!