So i decided to look in the plant errors for blockland and guess what?
Burried Oddity.

This is the burried error and it is used from V20 onward,but it was unused before.
Yay for recycling!
Version leftover.

Originally you could only have 1 music brick at a time.
Unused in everything.
A error named teams? There remains only a small error image suggesting it was cut early in development and the text was never added.


Meant for maps like slopes,it was probably removed because you could not build with this error without alot of luck.
If i had any errors can you post them? Also not counting the blockland beta and v0002. Former is because i dont have it and i never played it and latter is because i cant look in the images and i am too lazy to boot up ports'version.
EDIT:Too loud is not unused in everything.