How to Beat Demon Wall

Conquer Peglin's Demon Wall boss by focusing on burst damage. Learn the strategy for its four self-healing cubes and how bomb builds aid this fight.

Location: The Castle (Map 3)

The Demon Wall is a unique boss composed of four separate, self-healing cubes. It demands high burst damage.

• Phases: One main phase, but effectively four targets.
• Mechanics: Four cubes, each with 3500 HP, that heal themselves.
• Strategy: This boss is a prime target for bomb-focused builds, especially with the Scientist. Relics that convert black bombs to red, increase bomb damage, and make bombs activate in one hit are game-changing. Aiming between the four moving peg boxes can trap your orb and clear out multiple bombs from each cube. Be aware that red bombs cause self-damage, so monitor your HP. It's possible to defeat all four with a single powerful attack.
• Weaknesses: High area-of-effect damage, bomb chain reactions.
• Rewards/Achievements: 'All In All' for defeating him. 'Not a Dull Wall at All' for converting or destroying 3 dull pegs during the fight. 'Surprised the Ruins' for defeating all 4 Qaballistic Ruins with the same attack (some sources suggest this is for the Demon Wall, others for a different boss, verify in-game).