「Tetris THE GRAND MASTER4 THE MASTERS OF ROUND.」
Tetris (R) & (C) 1985~2009 Tetris Holding, LLC.
Tetris logo, Tetris theme song and Tetriminos are trademarks of Tetris Holding, LLC.
Licensed to The Tetris Company.
Game Design by Alexey Pajitnov.
Logo Design by Roger Dean.
All Rights Reserved.
Sub-licensed to ARIKA CO.,LTD.
「その他」
(C) SEGA