Qu-tros is a hyper harder unofficial variant of Tetris.

Qu-tros has about 50 more shapes than Tetris.

Qu-tros has multiple shapes falling simultaneously that can push and spin each other in mid-air.

Qu-tros has extra objectives and surprise items.

Qu-tros is way more challenging and fun.

Qu-tros is always evolving, more game modes and game balancing always in the works. Be sure to keep updates on.