Player 1 is Scratchy, and Player 2 is R2-D2. Player 1 will press the s key until the game is over, while Player 2 will press the left arrow key until the game is over. R2-D2 has more health the Scratchy because he takes 5 damage when he attacks.
This is the fourth game in my Scratchy vs. Star Wars characters game series. The next game will have Scratchy fighting a T.I.E. Fighter.