And the basic method for introducing outside code into NES Tetris has been publicly theorized since at least 2021 when players were investigating the game's decompiled code.

[Michal Zalewski], for instance, has made a beautiful Tetris clone in just 1000 lines of C, without using anyone else’s code.

How to Reprogram Tetris By Playing It - Behind the Code Leveled Up - YouTube Tetris, which was sold for the NES, has an 'endless mode' where you can keep playing until the game is over. In this ...

[Graham] designed this PIC based Tetris game on a single board. The hardware is quite nice but we enjoyed his explanation of the graphics algorithm that he used. Having coded Tetris from the… ...

In a nutshell: A crafty group of gamers has found a way to slip custom code into unmodified copies of classic puzzler Tetris on the original Nintendo Entertainment System. It's an exploit that ...