Welcome to DU/EL! Player One is red and uses WASD, Player Two is blue and uses Arrow Keys. DU/EL is for two players playing on the same keyboard. Other versions of DU/EL will have variations from this basic theme. Except for remixes where the person did not change anything. Space Invader DU/EL here= https://scratch.mit.edu/projects/643455089 In the old version of this, you couldn't turn and could jump infinite height. I fixed these and other bugs, including gravity and ground issues. Enjoy!