Katana Zero

Every Katana Zero guide in one place: level walkthroughs, every boss strategy, all hidden key locations, unlockable swords, endings, and secrets.

5 Things to Do After Beating Katana ZERO
Updated Oct 21, 2026 — Five things to do after beating Katana ZERO, from speedrunning for gold to hunting hidden blades.
How to Unlock the Psychiatrist Boss in Katana ZERO
Updated Oct 21, 2026 — How to unlock the hidden Psychiatrist boss fight in Katana ZERO, without starting a new game.
How to Unlock Different Swords in Katana ZERO
Updated Oct 21, 2026 — How to unlock the different swords in Katana ZERO by finding the hidden keys and the Gov't Lab level.
Katana ZERO Achievements Guide
Updated Oct 21, 2026 — Every Katana ZERO achievement and how to unlock it, including the hidden Prism Key.
Katana ZERO Club Neon Guide
Updated Oct 21, 2026 — The Katana ZERO Club Neon guide: how to cross the dance floor and take out the DJ.
Katana ZERO Murdower Hotel Guide
Updated Oct 21, 2026 — The Katana ZERO Murdower Hotel guide: how to fight your way to the top floor.
Katana ZERO Factory Hideout Guide
Updated Oct 21, 2026 — The Katana ZERO Factory Hideout guide: how to clear every room of the first mission.
Katana ZERO Tutorial Guide
Updated Oct 21, 2026 — The Katana ZERO tutorial guide: the controls and how to complete the opening mission.