If the globins in the bonus stage have a shield and a spear (when evolved, before they only have a small sword, but it still makes sense) they should drop scrap in that dimension, even if it's just a little, because getting scrap just by breaking equipment is tough.
#Scrap
simple garnet
junior stag
should be a % to drop 1/10 pieces of a completed scrap. Thats would be good