A secret weapon with a unique stat-inversion mechanic: Speed and Duration, rather than affecting projectile velocity and persistence as normal, instead increase the weapon's hit box count. Higher Speed adds more hit boxes (not more speed), higher Duration adds more hit boxes (not longer duration). This inversion makes the weapon build in a fundamentally different direction from standard weapons — stacking Speed and Duration becomes a pure hit-count multiplier.

Unlocked by entering the secret code "guinigigi" in the game's Secrets menu. It does not appear in normal weapon pools.

Max Chaos Rune (Lv 8), carry Spellbinder, and open an elite-drop chest after 10:00 to evolve. The post-evolution weapon name is currently unconfirmed from available data.

• Speed and Duration both convert to hit box count — any stat stacking in those directions directly increases hits per attack
• Enables a build direction not available to standard weapons
• Secret/collectible status makes it a notable target for completionists

• Requires the secret "guinigigi" code — not available to players who haven't entered it
• Hit box-style behavior differs enough from standard weapons to demand a learning curve
• Evolution result currently unknown, making long-term build planning harder
• Heavy dependency on Speed/Duration stat sources; other stat types contribute less

• Characters with Speed bonuses: convert directly to hit box count increases
• Characters with Duration bonuses: same — hit count scales with Duration investment
• Imelda: +10% Growth for faster Lv8

• Spellbinder: mandatory for evolution (top priority)
• Bracer: Speed bonus converts to additional hit boxes
• Tome: Duration bonus increases hit count further
• Spinach: +10% Might raises per-hit damage

• XX Silent Old Sanctuary: bonuses to both Speed and Duration amplify hit box count across both stats simultaneously
• IX Divine Bloodline: crit compounding across increased hit count raises DPS

• Early (0–10 min): Level Chaos Rune and prioritize Speed/Duration passives — Bracer and Tome turn every stat point into more hit boxes. This is where the inversion pays off most clearly.
• Mid (10–20 min): Secure Spellbinder and push to Lv8 for evolution. Stack as much Speed and Duration as slots allow to maximize hit count.
• Late (20+ min): The accumulated hit count delivers consistent multi-hit damage against dense packs. Spinach raises per-hit damage to match the increased frequency.

Q: How do I unlock Chaos Rune?
A: Enter "guinigigi" in the game's Secrets menu. This is a special hidden unlock, not a standard kill-count or character condition.

Q: What does Speed do for this weapon?
A: Instead of making the weapon fire faster, Speed increases the number of hit boxes — more hits per activation rather than faster activations. Duration works the same way, adding hit boxes instead of lasting longer.

Q: What does the weapon evolve into?
A: The evolution destination is not confirmed in current available data. Carrying Spellbinder and opening a chest after 10:00 at max level triggers the evolution, but the resulting weapon's name is currently unknown.