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NameUseful?DescriptionImage/VideoMisc. Notes
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NPC ClipA Koopa managed to clip Tall on top of a box. Possible in other areas?
https://twitter.com/Really_Tall/status/910992777646886915
Found by Really_Tall on 21. September
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Text StorageWorks in one room of Hoohoo Mountain next to the water spring and some guards in Beanbean Castle. Pressing A, B, X, R or pausing the game closes the text box.https://www.youtube.com/watch?v=Gzs1bJBNcZIFound by Really_Tall on 21. September
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Hazard StandThe swimming momentum of the Bros. are kept while reading a sign underwater. This makes it possible to fall on top of the spikes while the text is still up akin to Text Storage. Closing the box while on top of the spikes lets you walk on top of them unharmed.https://i.imgur.com/8pBOKpr.jpgFound by SolidifiedGaming on 22. September
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Oho Oasis Surf GlitchThe bottom right corner of the room to the left of Oho Oasis contains weird collision in the rocks. By entering the next room while hugging the rocks, the brothers clip the rocks in the next room which seems to shift the collision in a weird way. The game is essentially softlocked, as there is no way out.https://www.youtube.com/watch?v=bWxcHl8BWOkFound by Christian on 24. September
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Slope ClipThe corners of the sloped ceilings in Beanbean Castle Town can be clipped into by walking into them slowly while stacked or jumping carefully to them. Curiously this also works in the original GBA version.

If you Spin from the very edge of certain slopes, you can clip inside the floor. This clips the Bros. out of bounds. It seems DX has poorer collision handling as this doesn't happen on GBA.
https://www.youtube.com/watch?v=x3HKknPVLwc Town

https://www.youtube.com/watch?v=ymCc7J-wjM4 Sewers

https://www.youtube.com/watch?v=p2pTVCgI-qQ GBA
Found by Really_Tall on 25. September

Spin Clipping found by fawfulthegreat64 on 14. October
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Winkle Colosseum CrashTalking to the door guard from the side and while facing away from the minigame loading zone while stacked makes either Bro land into the loading zone without activating it. While there, change to Luigi's Tickle ability from any ability where Luigi is in the back and shock Mario. Then simply walk away from the guard. Talking to anything that unstacks you while stacked will now crash the game for some reason.Found by SolidifiedGaming on 26. September
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Action SwapIf Mario's Luigi Dunk hammering animation gets interrupted before it finishes, the Bros. go into a glitchy state where their abilities swap places. This can be done by hammering Luigi right when entering into a battle. It has various strange effects, but nothing useful as of yet. The reason for the glitch happening is most likely related to Luigi's unborrow ability not getting unset properly when the animation is interrupted.Found by micbs on 8. October
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