1 Key

1 Key, is a category for TAS'ers which involves in skipping the first Bowser fight (Bowser in the Dark World). The Glitch was discovered in mid-2015, then sonicpacker uploaded a video showcasing on how the skip works. The video included using PU movement to get into the door. (APU does not have water.) The first ever TAS/Speedrun of 1 Key was released on September 29th, 2016, a year after the skip's release.