On the root of your Memory Stick (e.g., E:\ or F:\), look for a folder named seplugins.
A common issue on 6.61 is an empty cheat list. This happens because the default cheat.db file included with the plugin is often outdated (circa 2008).
This report details the functionality and installation procedures for CWCheat on the PlayStation Portable (PSP) running Official Firmware (OFW) version 6.61. cwcheat psp 6.61
CWCheat is a legacy cheat engine homebrew application used to apply cheat codes (such as infinite health, ammunition, or item modifiers) to PSP games. While the PSP hacking scene has largely migrated to newer engines like TempAR or built-in cheat features in modern Custom Firmware (CFW), CWCheat remains popular for its compatibility with older cheat databases and its universal plugin architecture.
Navigate to: seplugins > game.txt
CWCheat operates as a system plugin.
Main menu options:
To enable a cheat: