Use the arrow keys and WASD keys to move (P) key to pause and the (1) key to place down a block. Shaders do not work they lag a lot.
This is my last project on Scratch sorry. I am moving on to Gdevelop and Unity. here's my account on Gdevelop https://gd.games/MeGameMaster I am not going to delete my account so you can still play my games. More updates may come.