Hi fellow gamers, can sombody PLEASE PLEASE help. I am at the last part of cooler after flooding the mutagen room, and have tried every concievable method to get past the Fat boy and the 2 trigen... to no avail. I have the M4, sniper rifle,P90 and grenade/machine gun. I have just recently gone "-DEVMODE" and am still having trouble with fly mode getting past him. I dont like using cheats but am desperate, also when in fly mode and I go a slight bit too far I end up in some 1/2 world, purgatory type place and have difficulty getting back to the rooms where my nightmare is being played out. It really is frustrating and is starting to take the edge of what, in my opinion is a fantastic game. Also, once through this how do you revert back to standard playing mode, presumably by removing "-DEVMODE" ? WOULD THAT BE RIGHT. Any help I could get would be much appreciated, kind regards to all from New Zealand.