Dunebud is seemingly a sort of slime monster, made of sand with what appears to be a patch of dirt on their head. The patch of dirt also has a sapling sprouting from it. Dunebud is a monster of few words, but they're presented as very playful and eager to have fun. They seems like can't talk normally, but can say something silly like: Swip Swap~, Gwob Gwub, Awoooo~, Wiggle Woggle~, heHE~, Grr~, etc.