This is a really cool tetris clone and I'm glad I found it. But, there are some issues that hurt the playability mostly due to how pieces interact with the board before they're placed. This is insanely good for a game jam game, though.
- If a part of the wall is solved (either because you guessed or got super lucky), then you can find all the mines in a piece before you place it completely removing the minesweeper aspect (until you clear enough lines).
- If you clear a line via minesweeper then hold, the held piece will be off center. This looks buggy and messes up the rotation matrix when you use the piece later.
- If you clear a line with a piece mid-air while its falling an hold, the remaining part of the piece will be held. This allows you to get 2 block pieces and that sorta thing. This is a fun bug to mess around with so it might not be that bad, but I just think it's silly that it's a thing.
- If you clear lines with a piece in mid air similar to above except there is nothing left of the piece (instead of only a portion of the piece remaining), then the game will softlock since the piece never registers as landed and the next piece doesn't appear. (but you can still get infinite points with softdrop)