According to this [1] comment on Amazon US, the Lychee product is a cheaper version of the official Tetris product [2]. [1] http://www.amazon.com/review/R10BVZ

According to this [1] comment on Amazon US, the Lychee product is a cheaper version of the official Tetris product [2]. [1] http://www.amazon.com/review/R10BVZ9OBT3IW3 http://www.amazon.com/review/R10BVZ9OBT3IW3 [2] http://www.amazon.co.uk/Tetris-Version-2-Tetrimino-Light/dp/B009USUO68 http://www.amazon.co.uk/Tetris-Version-2-Tetrimino-Light/dp/...