Paper Mario: TTYD - Gloomtail Cutscene Warp
Before being able to do this trick, Jump Storage needs to be obtained. This is done by cancelling one of several jumps forced by partners when you use them in the field on the first frame. For this particular instance, we can either get it from a separate file and die (without jumping) to load a save in the next room or obtain it from the Grodus cutscene using a Yoshi dismount before heading back here after the fights.
Once Jump Storage has been obtained, Mario can use Bobbery and have him explode while holding him at a somewhat precise height next to a ledge to set his action to idle and walk back up that ledge as if it were a step. This is important because steps give Mario vertical speed (and no acceleration) in order to push him above them, which is what we need in order to perform a Super Jump up to the door for this cutscene.
What this ultimately means is that any ledge can be used as a step for Super Jumps as long as Mario's action can be set to idle at the right height next to it, which could be huge news for this glitch as a whole.
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