This game uses LocalStorage to save Board State when the Pause Button is pressed, or a line is cleared.
This is saved as a JSON object named giant_tetris_save. This page also has a button that clears this data on request.
You are also welcome to clear the LocalStorage yourself using any means in your browser. While the LocalStorage isn't required to PLAY the game, it does allow the resuming of previous games.
[ Dismiss Notice ]
PAUSED
GAME OVER
DELETE SAVE STATE?
This will clear local storage and reset your current game entirely.