Zero Escape: Virtue's Last Reward, Just after the PEC puzzle, I lost my progress due to a save game bug and frankly didn't want to use the 100% save. I started from a much older save I had luckily copied, this time around I thought I'd share to save someone else from suffering this frustration. All prior puzzles completed on Hard with both passwords except infirmary(totally stumped on that one). One branch explored through cyan door to lock no. 4, then yellow door just past PEC. (this is past the two or three most common freeze ups that cause save game corruption. You can of course still solve the previous puzzles again if you wish.
http://www.neogaf.com/forum/showthread.php?t=497204
http://www.neogaf.com/forum/showthread.php?t=497204