Air 2 is a ROM hack of Super Mario Bros. by U1 and a revision of the ROM hack Air, which was also created by the same author. It is a puzzle-oriented ROM hack which requires knowledge of Super Mario Bros. glitches in order to solve. What makes Air 2 different from Air is that it lacks the infinite jumps feature Air had and all hidden blocks are marked at the start.

Compared to the previous run, Asumeh decides to go for pure speed and completion time instead of demonstrating what the hack has to offer, using clipping glitches to bypass intended solutions and save almost two minutes of game time.

Watch this run being played back on a real console.