Rainbow Slime!

*Honk based slime that works off existing unused sprites, it has a rare chance of appearing as offspring of any tier 5 (end tier) slime.

*Has two reactions:
**Plasma reaction will spawn a modest (10) amount of bananium.
**Banana reaction (blend a bunch of bananas for banana juice and inject that) will spawn a number of NPC clowns (has logging a la gold reaction).

*Rainbow slimes are difficult to breed as they only mutate back to grey slimes.
**This also provides a way for players to get new grey slimes if they were dummies and used all their grey cores for monkey cubes.