I have been adding negative operators to death (-) to my search terms to exclude irrelevant information which typically leads to junk unrelated to even gaming results. Also many results in Google pertain to PCSX2 which I am NOT USING. All the codes that were preinstalled work flawlessly. I tried burned games and actual PS2 discs and codes that I add manually do not seem to work whatsoever. I am using the NTSC-U versions of all games. All that seems to come up are people using the PAL or JAP versions of games which is NOT the case for me. I have been Googling around for five hours and I cannot find anything related to my issue. Two of the games that I added manually are Okami, and Mortal Kombat Armageddon I verified multiple times that the codes are indeed entered in correctly.

However, none of the cheat codes that I added manually are working with ANY game. Sadly, there are about 12 games so far that I want to use codes for that codes do not come preinstalled on the Codebreaker that I added manually. I have the latest version of Free McBoot and it comes with Codebreaker 9.2

Free mcboot latest version