Sprunki Phase 4: Decay by the Day is a music mixing game where you create beats by dragging and dropping characters—just like Incredibox. This mod by Marcello/pan gives every sprunki a decay-themed makeover while keeping the core gameplay simple and fun. Players can mix different sounds to make unique tracks. The best part? You don’t need to install anything—just head to KBHGames.com and play it right in your browser, fast and free. It’s an easy way to experiment with music without any hassle.