Battle Raper series

Battle Raper (バトルレイパー) is a eroge fighting game developed and published by Illusion Soft in 2002. The game has gained notoriety and controversy for its simulation of rape. This aspect was removed in its 2005 follow-up, Battle Raper II: The Game. While it still includes some sexual elements such as the removal of clothing, the sequel focuses more heavily on the fighting mechanics.