Unbelievably polished real-time puzzler on all levels, from sound effects (especially the block-dropping contact sound) to music, graphics, and smoothness of gameplay. I only have 3 comments:
- The middle mouse button/scroll wheel should speed up the game.
- You should be able to leave the play-mode selection screen by pressing Escape (which currently does nothing).
- Some sort of Thinker/Zen mode in which blocks fall based on rotations made, instead of on progression of time, would really rock.