Merge Guns: Brainrot Battle is an incremental combat game where you merge weapons and fight endless Brainrot bosses. Buy mystery boxes, unlock guns, explosives, and blades, then combine matching items to create stronger gear. Place upgraded weapons around the boss and watch them attack automatically. Use boosters, improve damage, and keep upgrading to defeat tougher enemies. Play the Merge Guns: Brainrot Battle game at Y8 now.