Silver + Speedrun Berry will need certain additional tweaks

[GreyMario]

This is more for personal notes.

Some maps in the collab have intro rooms that are intentionally returned to at some point as a progression mechanism.

I want to add a controller entity that can delete the Silver and Speedrun berry from the room if they are unowned when the player enters the room via a transition.

[GreyMario]

They'll also need to be able to savestate, of sorts. We don't want "persistent" obstacles suddenly becoming not in the way on subsequent berry runs...