Yeah, we haven't programmed support for t-spins yet. The game also currently uses pure random for selecting pieces, so we do plan on eventually implementing 7 bag. I'm more of an artist and modeler, and currently my programmer friends are more focused on the 3D platformer. And you didn't come off as rude, I'm pretty picky with tetris too! You might have noticed this game is also missing wall kicks, it would be nice to eventually have them implemented too.