Welcome, guideoui.com visitors. In this guide, We try to focus on Katana ZERO Key Locations. While writing this guide, we pick up many pieces of information from several sites for you. We hope that this guide will help you.

These keys are needed to open new types of swords. If you think that these keys are needed to open the next door, then you are deeply mistaken. But judging by the original, this door should open in the near future. (Perhaps developed will file a DLC for playing.)

Prism Key

The prism key is located at the start of the game. Choose the first mission [Factory] and start from the beginning.

After the cutscenes are over, you will find yourself here.

Jump on to the building on the right, then over to the left. The jump is a little high, but attacking upwards boosts you on to it.

Here you can pick up the Prism key from a corpse.

Master Key

The master key is located in mission 2, [Hotel]. You have to play through most of the level normally, until you reach the top of the building.

Breaking down the final door will activate a cutscene, so don’t do that.

Pick up this statue.

Open the door, but do not walk through it. Instead, throw the statue straight across. This will kill your target.

You can loot the key off of his corpse.

Note: Jumping off the building gives you an achievement, and it doesn’t matter what you do after picking up the key.

Phoenix Key

This key is in mission 6, [Mansion]. You can skip to the part after ‘B’ to start right at the mansion itself.

Play through normally until you reach this mission.

In the top left room of this level is a criminal. Don’t enter his room. Clear out the rest of the level.

You have to wait on this guy for a while, but once he gets up and leaves, enter the room and you can pick up the key.

You can now return to the menu, or rush quickly to the exit as you are about to run out of time.

Savant Key

This in one of the harder keys to get. It is located in mission 9, [Sltr.house]. You have to be careful on this one, as if you don’t know what you are doing, you can have to restart the whole mission. The only times you need to be careful are when you encounter Leon, the dude on the TVs.

The first encounter:

Immediately after breaking down the door, jump up and cut the wire. If the doors started closing, restart the room. If this works he won’t snipe you in rooms to come.

The second encounter:

Note the cameras above. If you get seen by them, just restart the room. I have marked about where the danger and safe zones are. Roll through the red and land in the green. It takes a few tries, but isn’t too hard. You shouldn’t have to fight anyone. Just walk through the room rolling twice.

The third encounter:

Same thing as the second encounter. Restart if they see you. After you make it through, go down to the room below the TVs. You will find the Savant Key.

Prototype Key

This key is unlocked optionally during mission 4, [Prison]. There are two ways to get it, depending on your conversation with your psychiatrist earlier in the level. You can skip to your conversation with him freely. The two ways are a darker, easier way and a better, harder way.

Thanks to MrMcCorn and xob0t for help finding the easy way.

The easy way:

Go to your therapy.

Follow these choices:

I spoke to Electrohead He told me about a drug that sounds like mine. Do my powers come from the drug? I don’t want this. No, I don’t want the drug anymore. No. No.

There are other dialog paths, but the important part is to avoid the drug. This will unlock the achievement Refused medication. Once you load in to the level a voicemail will play telling you to kill everyone. Do just that. Go through the level leaving no man alive.

Once you beat the level and run in to the homeless veteran, make sure you choose to kill him too.

Then once you get to your house you will see the case with the key.

The hard way:

Take any dialog path that gets you drugged. You must now kill no one, including the homeless veteran at the end of the level, and not be seen by any guards. Make sure not to waste your efforts because of him.

Going stealthy can be neat puzzle, but if you don’t want to figure it out yourself, a perfect reasonable decision with some of the parts, here is a walkthrough.

For starters, most of the level should be spent in stealth using ctrl/Y/Triangle.

Room 1

You can hide with your interact button in the open jail cells. For the first room, sneak in to the first one while the guard is walking away, wait for the guard to turn around and get past you, then go to the door. Once the next guard is facing away, continue through and drop down to a safe spot on the stairs.

Repeat the same process for the lower level.

Room 2

This room has a bottle and a bell. Pick up the bottle, drop down the stairs, and use it to ring the bell. (I think, it might just hit the ceiling.) This will distract the guard in the upper sector, allowing you to jump up behind him and sneak past.

If you time this right, you can drop down on to the next flight of stairs. Wait for the guard to walk over you, and exit the level cleanly.

Room 3

This is a pretty easy room. Enter the first door you come across.

You can see where the guard is outside on the little TV. Wait for him to walk to the other side of the door, and then exit the side room. You can then exit the area.

Room 4: Outside

This part is awful. I recommend a controller of some kind, as you can use down to crouch without any risk of rolling, which then alerts everyone to your location.

No real walkthrough on this one, as what you need to do is pretty clear: Go left.

Some tips:

If you are in stealth (ctrl/Y/Triangle), no one can see you when you are out of the lights and out of the brighter green cone. You can enter the dull green view cones without any drawbacks.

If you are in stealth and hiding on an object, such as the bleachers or weightlifting equipment, no one can see you at all, even in the light.

You can crouch with Down to hide behind the tables. Note that you cannot move like when you hide in other objects, but you are still completely hidden. This is part of what makes a controller easier.

After lots of tries, you too can one day see the exit.

Continue playing until you get back to your home building. You will see a case that contains the Prototype key.

This is the ending of Katana ZERO Key Locations guide. I hope it will help you. If there is wrong or you have suggestions, please let’s know and comment us. Have fun.

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