This summer, a speedrunner by the name of Zikubi managed to completely smash the world record for Super Mario 3 completion by using gameplay to reprogram how the game reacts.
Via that wormhole, Mario is able to ride a glitch "behind the bounds of the level" since the pipe technically has no exit. Mario then comes out inside garbage data created by the game, interacts with a block causing the game to read conditions set into place earlier in the run, and sends Mario on a journey to victory.