In the 6

In the 6 is a category on the Extra Categories leaderboard, in where runners get stuck in the "6" in Bowser's Front Door. This run is most often performed with the Orb glitch in order to skip Iggy's Castle and Cutscene. Another method is to use ACE or Arbitrary Code Execution. A guide on In The 6 ACE is available under the Route section.

Route

• Yoshi's Island 2
  • Yoshi's Island 1 (Orb route)
• Yoshi's Island 3
• Yoshi's Island 4
• Iggy's Castle
• Donut Plains 1 (Secret)
• Donut Secret 1 (Secret)
• Donut Secret House (Secret)
• Star World 1 (Secret)
• Star World 2 (Secret)
• Star World 3 (Secret)
• Star World 4 (Secret)
• Front Door

ACE Guide

ACE is Arbitrary Code Execution. The player writes specific bytes of data in the game by performing specific actions on specific frames or pixels in the game. The player then forces the game to read the arbitrarily written code, in where the game executes the arbitrarily written code.

Resources

Route Video

This video shows a real time route for In The 6 ACE:

Video: In the 6 ACE Route Source: MostlySMW

The description has some very important information as well: One important thing: Make sure not to lick any berries once you're in YI2 (running into them is ok). If you lick a berry, it overrides the values you set when you were in YI1.

PasteBin

There is also an In The 6 ACE Pastebin by MostlySMW: Go to YI1, get a powerup in reserve and drop it so it sets $EF to 19, then get another powerup and drop it so it sets $EE to C7. Kill yourself and get back to YI2. Do everything normal, except make sure to kill the red shell after the message box and the 2 naked koopas. Do all the shells, up until the slot 7 one, where things get a little weird. You have to first kill the slot 9 koopa, do the turn around and the shell kick upwards, THEN spit it where it needs to be. You'll also have to use the fireball from that last koopa during the swap, since you killed the other red koopa. After you spit the shell, just continue and do the swap