Hello,
I really love what you have done with the game! I have been playing V3.2.1 for a couple of days now and I love it, it has come a long way since a couple of versions ago! It's becoming my favorite way to play Tetris, and it is something special with all the options that you have added. I can't believe that it works so well on GBA. Great work!
I do have some suggestions, based on my experience with the game and other versions of Tetris:
I think this game is missing a bit of delay when clearing a line. All the Tetris games have it and on greater speeds it gives you a couple of moments to think ahead. Tetris DX has it, Tetris DS has it (although it gives you a bit less time, but still, it's there) and the fact that Apotris doesn't have it really messes up the flow on bigger speeds. The next piece comes way too fast after clearing a line, compared to the other Tetris versions. In some cases I still press a direction for the piece that cleared a line but the next one is already half way down and moving. I don't have this problem on any other Tetris version, so I'm sure this is happening because of the lack of a bit of delay after clearing a line.
This coupled with the fact that the piece is locking weird when still rotating it, makes it strange to play or rather unplayable past speed level 11-12. I think on a game this fast, line clear delay and locking the piece after a greater number of rotations would make the game better.
Any plans on working on those things?