The Midair P Switch Jump, commonly shortened to Midair P Jump, is a basic trick used in the game. It is a harder version of the P Switch Jump.
How It Works
When Mario lands on a P Switch in midair, he is considered to be standing on ground for 10 frames. During this time it is possible to perform a jump. On levels created after version 1.40, Mario will only be considered to be standing on ground for 3 frames.