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Katana ZERO

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Title Screen

Katana ZERO

Developer: Askiisoft[1]
Publisher: Devolver Digital[1]
Platforms: Windows, Nintendo Switch, PlayStation 4, Xbox One
Released internationally: April 19, 2019[1]

AnimationsIcon.png This game has unused animations.
AreasIcon.png This game has unused areas.
EnemyIcon.png This game has unused enemies.
MinigameIcon.png This game has unused modes / minigames.
GraphicsIcon.png This game has unused graphics.
MovieIcon.png This game has unused cinematics.
ItemsIcon.png This game has unused items.
SoundIcon.png This game has unused sounds.
SoundtestIcon.png This game has a hidden sound test.

PrereleaseIcon.png This game has a prerelease article

Katana ZERO is a 2D action platformer where you can slow down time to about the same speed the game was developed.


Read about prerelease information and/or media for this game.
Prerelease Info
Unused Levels
Bonus Stages, Multiplayer, and manual tiling.

Unused Graphics

Extended Torture Scene

The neighbor's torture scene was originally going to be longer and more graphic. In the final game it ends right as V begins cutting his victim's fingers off, however the scene was actually fully animated and continued with V striking his victim with a golf club.

Early Zero Sprites

Early, possibly placeholder sprites of Zero. They look far cruder than the final sprites.

Unused Enemies

Prison Terry

There's a prison variant of the Strong Terry enemy that goes unused. There are also animations for the protagonist drowning him in the prison toilet, implying that Prison Strong Terry was eventually replaced with Fa Yuan, as that's exactly where and how The Dragon kills him.


To do:
Add sprites.

An unused enemy who fires green bullets that cannot be deflected. He appears in the unused Government Lab room. Though unused in the base game, the Scientist will be featured in the upcoming DLC. (His bullets will now be deflectable, however.)

Unused Cutscene

On the first level, if you kill all the enemies in the final room and then return to the entrance instead of speaking to the scientist, a leftover cutscene from an earlier version of the game will play.

Unused Audio

Voice Acting

At one point in development, Askiisoft considered voice acting in Katana ZERO. This is the only remnant of it in the game files.


Sound Test

Using Cheat Engine to change address 02C35898 to 157 and starting a new game will allow you to access a hidden (but very primitive) sound test. This is also how you access other unused levels.