reload the project if you went into the game's code before playing. i don't know why this happens, but physics will just not exist. WASD or arrow keys to move. SPACE to jump. down to interact. IF YOU ARE STUCK, that is my fault. (i am bad at explaining things.)
kept the original instructions, but thanks to the guy above them for making the base game, and thanks for @Hakr0101 for the idea of changing the name with another light producing object. Also now you have a SUNBEAM YEAAAAAAAAAAAAAHHHHHHHHHHH