Fitris: Classic Block Puzzle

Fitris is classic falling blocks puzzle game your objectif is to move and rotate the blocks as they fall, attempting to fit them together. If you can completely fill one horizontal line with colored squares, that line disappears and any filled squares above move down. If you're unable to fill lines completely, the tetrads will stack up and eventually reach the top of the playing field then game over.

Levels
Levels are a measurement of difficulty.
The speed at which pieces automatically drop down increases by 10% per level.

Scoring
100 points for 1 line,
300 points for 2 lines,
500 points for 3 lines,
800 points for 4 lines