In this TAS I go to YI1 first in order to get the fire flower. Next I play the switch palace and then go back down to YI2. I play through and get to YI3 and do the powerup increment glitch a bunch in order to get mario all weird. Next I play through until Iggy's Castle in which I hit the item box which looks like a flower but is actually a cape because of mario's powerup status and I may or may not have found a new glitch where you can kill yourself from flying during the Iggy fight.