"All of this! Is nothing more then textures slapped onto Polygons!" .Hack//G.U. Vol. 1 PS2. 

So I was at what I like to call the "final stretch" of vol.1. Where after you beat endrance and after the ceremony, everyone is available besides atoli. And after before you leave to check the desktop after leaning Kings island, you finish up side quests, and grind to lvl 50, the Cap for vol. 1.
During one of my grind quests(Area word is: DELTA Freezing Humbling Fast Horse), BF2, bottom right most chamber you get locked in. And the Games Area Glitched.