It doesn't, although its randomizer does favor some pieces over others: https://harddrop.com/wiki/Tetris_(Game_Boy)#Randomizer https://harddrop.com/wiki/Tetris

It doesn't, although its randomizer does favor some pieces over others: https://harddrop.com/wiki/Tetris_(Game_Boy)#Randomizer https://harddrop.com/wiki/Tetris_(Game_Boy)#Randomizer