背景：安藤りんごの実家
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Tetris (R) & (C) 1985～2014 Tetris Holding. Tetris logos, Tetris theme song and Tetriminos are trademarks of Tetris Holding. The Tetris trade dress is owned by Tetris Holding. Licensed to The Tetris Company. Game Design by Alexey Pajitnov. Original Logo Design by Roger Dean. All Rights Reserved. Sub-licensed to Sega Corporation.