Quite a unique take on Tetris. I especially like Ultimate version. Music and graphics were nice but think it would be better for same type of blocks to have same colour for modes with more than one type of block. For some modes such as Box, maybe can implement different sizes of boxes, else there is no way to lose? Gameplay wise was not really smooth, had to press a key to move one box each time instead of holding down the key, but overall the game was good as it offered a different experience to Tetris.
p.s. Game was a bit of a hassle to get running, but lucky for me, I worked on data science projects and had the (almost) latest version of Python installed. Just had to set up a different venv with pygame but I think more people will play the game if starting it does not require more steps than necessary.