SMRPG Didyouknows

[BeamuFireu]

There were originally going to be a Banana Peel item (presumably from Mario Kart) and an Urchin item (from Super Mario world). It's unknown what the items would do. The sprites for said items can be accessed via Debug menu.

[Xannidel]

They might have just been unused sprites, here is a video of some more sprites