Buying used video games is great for gamers who don't want to pay full price for the latest hits. You know who doesn't like used video games? Game publishers. In a very sad twist, Capcom's fighting back against the second-hand game market with a game that can only support one save file for life.
It's been confirmed that Resident Evil: Mercenaries 3D for the Nintendo 3DS is a game that once finished, cannot be reset for complete replay. According to both the U.S. and U.K. game's instruction manual "saved data on this software cannot be reset."
http://dvice.com/archives/2011/06/capcom-tries-to.php