It's a shame that you can only buy the S-piece in the shop, because this is a really cool idea for a game! I have never been the best at playing Tetris, so I have no issues with someone else playing for me...This is definitely worth revisiting once the fixed version releases. For now, my only minor complaint would be that the Tetris board clashes with the background image a bit, so it's not obvious where the grid starts and ends.