Use right and left arrows to move and switch directions. Use the up arrow on the ground to jump and in the air to double jump. Use the down arrow to slam down to the ground. Shortly after slamming to the ground, you have the chance to perform a power jump. This will propel you up high into the air depending on how high you slammed down from. Press space while moving in the air to dash left or right.
LOTS OF FLASHING LIGHTS. If the game begins to lag out, press the green flag. You won't lose your progress. Do this also if you are unable to jump.