A bit glitchy sometimes, great concept but really confusing on the brain lol. The color palette is very pleasing and I like the rotation animation. This game might benefit from tetris 'shadows' to understand better where a piece is going to go, I had a few times I was able to nail it right and other times not so much. Also, the dark triangles on the playing field feel like they're not really playable, a separate color from the background would work a lot better while maintaining the contrast you currently have.
I love strange tetris clones, so this caught my eye immediately. Good work!