Talk:Rock Slime/@comment-35061252-20190313172244/@comment-25057706-20190706132322

I'd imagine slimes are jellatinous organisms, I, too, am unqualified to say this, but I'd imagine either he picked up the rocks rolling around so much, and, being jelly that stuck on/in him or he evolved through rocky terrain to essentially adapt rock-like qualities. Take your pick.