・ぷよぷよテトリス 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. （C）SEGA
・スペランカー (c)1983-1984 Timothy G. Martin (c)1985-2013 Tozai, Inc. Released by Tozai Games, Inc. under license from Tozai, Inc. Spelunker is a trademark of Timothy G. Martin and Tozai Games is a trademark of Tozai, Inc. registered or protected in the US and other countries.