Tetris: Fair Edition

This rom hack implements the modern “7-Bag” Random Generator for NES Tetris. Instead of the totally random piece generation which NES Tetris is known for, there is an even distribution of pieces.

This is most easily described as placing the 7 unique Tetrominos in a bag, and drawing them at random. Once the bag is empty, the bag is again refilled with the 7 unique pieces. The result is a more “consistent” game, with no piece droughts or wacky distributions.