Honestly, with the SNES technology the way it is, it might not be possible to get more than two item sprites on the same screen. That is to say, if you do this, the next one might not spawn in.

I don't know for sure, though.

[–] Quetzalcutlass@lemmy.world 6 points 5 days ago* (last edited 5 days ago)

Super Mario World uses a sprite slot system where a limited amount of memory is set aside and reused for on-screen objects. Normally stuff simply won't spawn if you're at or over the object limit, but using glitches to go over this limit leads to all sorts of weird stuff, like being able to spawn a glitched item that ends the level immediately.

Super Mario 64 has a similar object limit with equally broken results when you manage to bypass it.