Signal Amplifier

Defeat Hitler III, the final House Boss in Act 3 and the last House Boss in the game, to unlock the Signal Amplifier item. This three-phase fight is one of the most demanding encounters in Mewgenics. In Phase 1, Hitler III summons robotic copies of every class miniboss and becomes untargetable; you must destroy all 14 Robo-Cats to proceed. Use this phase to set up buffs and healing while clearing the robots. In Phase 2, Hitler III enters direct combat using teleportation and deadly counter-attacks that can instantly kill adjacent cats. In Phase 3, his head falls to the ground and all cats gain Adrenaline, giving you a window to finish him off. The Signal Amplifier is also a quest item needed for story progression.