Twilight Warior - It's always good fun to do that. Although beating him with the knife was easier than it should have been.
luckyplayas101 - Apparently, you have to fully upgrade a weapon, and then purchase the infinite ammo option for it. When you next start up the game, select the option to use infinite ammo (which will be there even if you haven't purchased infinite ammo for any weapons).
« Last edited by Volke on Jun 4th 2009 ».