Updating my katana phone
Take the left path and follow the wooden boards, until you reach a room full of loot and goodies.
It will be found sticking out of a man, presumably Asian, with his arm tattoo cut off and displayed above his body.
After finding the Toy piece and Timmy's drawings, climb the rope.
At the top, avoid the right path (which is leading to the large cavern with the crucified man, an Armsy and multiple cannibals).
According to the official Kantana Zero Twitter account, there'll be a cheat code within the next patch, allowing players to recover their progress if they accidentally reset their save file.
It is one of the easiest to obtain items in the game, as it does not require that the player face any cannibals or mutants.
To obtain the Katana, enter the easternmost entrance for Cave 1 (located here), which is not too far from the river.
This can "handicap" players in the long run, as slower, harder-hitting weapons such as the modern axe and crafted club can be difficult to adjust to.
Some players benefit by practicing the timing of their weapon swings; the katana's swift striking abilities do not facilitate the development of swing-timing skills, however, potentially requiring more practice with other weapons at later points in the game.