An evolved clockwork weapon obtained from Clock Tower's evolution. Like Endo Gears, Epi Head also triggers other clockwork weapons when it activates, and its damage scales with both Amount and the cumulative Orologions collected during the run. With both Epi Head and Endo Gears active, each weapon's activation triggers the other — creating a chain loop where activating one cascades into the other firing as well.

Endo Gears is listed as Epi Head's evolution material, meaning a union evolution with Endo Gears at max level is the evolution path. The clockwork weapon ecosystem built around both weapons forms a high-synergy build that grows stronger throughout the run.

Max Epi Head (Lv 8), carry Endo Gears (also at Lv8 for union), and open an elite-drop chest after 10:00 to evolve. The post-evolution weapon name is currently unconfirmed.

• Chain-trigger loop with Endo Gears: each weapon's activation triggers the other, substantially increasing effective fire rate
• Orologion scaling accumulates throughout the run — damage grows with every pickup
• Amount multiplier increases simultaneous projectile count for wider coverage and higher burst
• Union evolution consumes no passive item slot — all passive slots remain free for other build components

• Multi-step acquisition cost: Clock Tower evolution then Endo Gears leveling before the union is possible
• Requires Endo Gears at Lv8 — occupies two weapon slots simultaneously
• Orologion scaling starts low before enough are collected; early output is modest
• Evolution destination currently unknown

• Characters suited to Clock Tower on specific stages: smooth entry into the clockwork weapon build
• Characters with Amount bonuses: simultaneous projectile increase maximizes per-activation output
• Imelda: +10% Growth accelerates both Epi Head acquisition and Endo Gears leveling in parallel

• Duplicator: Amount increase raises simultaneous projectile count — directly amplifies both damage and coverage (top priority)
• Spinach: +10% Might raises the base damage of each individual hit
• Tome: Duration increase extends how long each clockwork projectile remains active
• Candelabrador: wider area extends each clockwork weapon's effective hit zone

• III Tragic Princess: Amount increase further raises simultaneous clockwork projectile deployment
• IX Divine Bloodline: crit compounding on chain-triggered clockwork hits raises DPS

• Clock Tower phase: Level Clock Tower for Epi Head while leveling Endo Gears in parallel — both should reach active status as close together as possible to start the chain-trigger loop early.
• Clockwork build established (mid): Actively collect Orologions on the stage to accumulate damage scaling. Add Duplicator early to maximize the number of simultaneous projectiles released per chain-trigger cycle.
• Late (20+ min): With the chain-trigger loop running and Orologion scaling accumulated, total damage per activation cycle is very high. Post-union evolution output is further amplified.

Q: How do I get Epi Head?
A: Max Clock Tower (Lv 8) and carry its evolution material, then open a chest after 10:00. Like Endo Gears, it requires Clock Tower to appear in the run first.

Q: Can both Endo Gears and Epi Head come from Clock Tower?
A: Both are clockwork weapons obtained via Clock Tower evolution. Running both in the same build creates the mutual chain-trigger loop — the core of the clockwork weapon build.

Q: What triggers the union evolution?
A: Both Epi Head and Endo Gears at max level (Lv 8), then opening an elite-drop chest after 10:00. The post-union destination is currently unconfirmed.