A tetramino is an hat item that resembles a Tetromino from Tetris. The first tetramino was released on January 13, 2018, which is now a deleted item.

List of Tetraminos

Patriotic Tetramino Of Terror

Released on January 13, 2018

Tetramino Patriot
This item was made to "spook" other players because people spammed "I would actually want a gold tetramino", which was started by Its Madness. It was uploaded as a T-Shirt, and it was created by Jefemy. The item was renamed to "sorry typo" a few minutes later. This item only lasted for a few minutes.