Use the mouse to control your character's movement - your character will jump automatically, you just have to point them left or right and jump from platform to platform. You must also try to collect stars around the platforms - this will give you a boost and increase your size. Use the left mouse button to stomp on enemies that are smaller than your own character (you can only destroy them), so be careful! This game has great gameplay and is a fun way to compete with other players around the world.