Danny DeVito in a Batman suit, plump and cheerful, wearing a mischievous Joker-like grin, set against a whimsical fantasy background. The scene is drawn in a childlike crayon scribble style, with a basic cartoon draft feel. The colors are bizarre and vibrant, enhancing the quirky atmosphere. DeVito's limbs are exaggerated and playful, surrounded by a few whimsical, cartoonish creatures that add to the fun. The image captures an offbeat, surreal vibe with charming imperfections and humorous details.