You really can't go wrong with Tetris.
I noticed that you are using the classic style of Tetris, without the 'ground slide' from modern entries, that is as soon as a piece touches the ground it stays there, that took me some time to get used to, nothing wrong with that but I wanted to mention it just in case.
In the end though, I barely used the powerups that you are given, I mostly played Tetris normally and mostly did alright like that.
Good work!