Arrow Keys or WASD to move, Up arrow or W to jump. SPACE in air to spin jump, Down or S in air to Ground Pound, Down or S and an arrow key or A or D to Dive, Crouch with Down or S, and push Up or W and A or D to Long Jump. C to switch characters (Mario and Luigi are playable.) You can pass through a star in levels, but please do not.
Credits are in the game, but mostly thanks to @triangle5820. Rest in peace.
