What is B type Tetris?

What is B type Tetris? B-TYPE. B-TYPE is a 25 lines mode. The player may also select a height from 0 to 5, which will increase the amount of garbage the game starts with. The height * 2 is the amount of lines that will appear at the start.

B-TYPE. B-TYPE is a 25 lines mode. The player may also select a height from 0 to 5, which will increase the amount of garbage the game starts with. The height * 2 is the amount of lines that will appear at the start.
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