Remember when you could cheat through an old game you had on the ps2? Well if you soft modded your console with freemcboot (my tutorial here:
You must login or register to view this content.) you can run a homebrew program to bring back your cheating winstreak! Keep in mind this also works with your esr backed up games.
ok getting started, (i recommend you have your USB stick handy) you will need to download the codebreaker.elf file itself. here is my personal file:
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make a folder on the root of your memory stick called freemcboot. throw this file inside (along with any other homebrew you have. this will keep them organized) now head to your console. hit the uLaunchelf option to go to the filebrowser. here you can pop in your game.
browse to the CBv92.elf homebrew and hit circle. it will boot up the codebreaker. here is something you cant forget or you will get a black screen when you start the game: BEFORE YOU HIT START GAME, TAKE THE USB STICK OUT OF THE PLAYSTATION
before you do anything, go to the options menu and take the auto eject option off (the disk you want to cheat on should be in already at this point)
now go and select your cheats and hit start game. you will boot up ulaunch elf. why? this version of codebreaker is modded so that if you are using a backup of a game you can start ESR or boot it off your external hdd/USB.
for legit sony disks: once ulaunch is started, go to the misc folder and hit browser. it will take you back to the browser and load up your game with the cheats on.
ESR disks: once ulaunch is started, go to the MC1 folder then to the BOOT folder. hit ESR and bam done. ESR will load then hit the first option to start your game with cheats.
ohhh and to add cheats visit
You must login or register to view this content. and register then from the main site click the cheats tab. then sony playstation two on the left side. find your game in the alphabetical sorting and download the .cbc file.
take the .cbc file and put it on the root of your USB stick. load up codebreaker and select Day1 on the right side. select the name of the game you downloaded and select add. you do not have to save the config. if you do not, however, you will have to go back to the day one option to put the cheats in the list.
once you add the cheats, go to the cheats list and find the game you added. select your cheats and hit start. pull out your USB stick and continue as normal