Oh man this is wild! Love the 2D lineart style, I don't think I've ever seen that done before in 3D and now I just want to see more of it haha! The core gameplay loop is also pretty interesting and I think there's a lot you can do with it, it's already quite fun even just moving around the room bouncing the ball off the angle blocks and walls and such, I'd really like to see this concept expanded upon both for graphical style and the gameplay possibilities. Great work!