Tetromino Code
Appearance

Tetromino Code is a vertical sequence of tetromino symbols which contains a sequence of inputs to be pressed in order to solve a puzzle. It is a main way the game presents an Input Code to a player.

Reading sequences
A method of reading tetromino codes is explained on a blackboard within the Nuzu School. It can be read as following:
- Separate the sequence into individual tetrominoes.
- Rotate the entire sequence 90 degrees counter-clockwise.
- Reading from left to right, press the input corresponding to each tetromino symbol.
Reading symbols
Interpretation of tetromino symbols can be learned from the Code Machine. It will display a matching tetromino symbol when a game input is pressed in its close proximity.
Appearance
Tetromino codes almost always appear as a vertical connected sequence. They are very often inscribed on purple monoliths scattered across the world, but they can be seen on walls, floors and maps as well.
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