Mementos is Joker’s from Persona 5’s stage in Super Smash Bros. Ultimate. It’s based on some area in Persona 5 but since I’ve never played it, I won’t pretend like I know what it is.
The stage looks pretty simple at first. A large flat surface for the main part.
And some little platforms.
Besides Persona 5 cameos, what makes the stage specials is that the edge of the stage can come out of nowhere. Which hurts if you’re hurled towards it.
It can come left, right, or above, so always keep watch.
While not exactly my favorite stage from the DLC fighters, I do like it.