I had a dream about Dragon Quest characters in a different sort of RPG world. You played as whatever monster you wanted (but the main, "canon" race was a platypunk), and you go about and save people as a monster with superhero powers! The first boss is a dark clone of your character, and once you subdue him and show him who's "the big cheese around here" (as it was put by the text), this green slime comes out and gives you a weapon out of thanks. The examine info in the dream-game called it "PeaceSlime Lvl 5" (a reference to the old Game Boy Color Dragon Warrior Monsters, which did not use spaces in monster species names), and for some reason, I wanted to learn more about why my mind made this character so interesting!

So I drew the one that gives you the Staff of Slimon. Presumably, there's more, but this is the only one I saw.

Why green? Iunno, ask my brain.