If you jump onto
of the toilet, you can jump over the invisible wall and get access to outside of the play area. It truly feels nice to walk around.
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You can also use the jumping attack and with a high enough Mana regen boost, you can just zoom out of the playable area and into an area where you can't move around at all, just turn. Going further you eventually get into an open space where you can walk again. Then there's a wall that you can't surpass, so you can jump-attack again and you're outside the wall. From there, it's only a short walk until you reach the end of the map and fall off into the void. Quite fun ngl