Cwcheat (short for "Cheat Master" or "CW Cheat") is a plugin originally developed by Weltall. It functions as a real-time cheat engine and memory modifier for the PSP. Unlike GameShark discs of the past, cwcheat runs in the background of your custom firmware (CFW), allowing you to:
The major challenge for users is that the original cwcheat was last updated officially around firmware 5.00 M33. Getting it to run on PSP 6.61 (the final official firmware from Sony, released in January 2015) requires specific modifications and correct installation paths.
The following steps outline the standard installation process for CWCheat on a PSP running 6.61 Custom Firmware.
Step 1: Download Files Obtain the latest CWCheat package (commonly found in homebrew repositories). cwcheat psp 6.61
Step 2: Directory Placement
Connect the PSP to a computer via USB. Navigate to the SEPLUGINS folder on the Memory Stick. (If this folder does not exist, create it at the root of the Memory Stick).
Step 3: VSH and Game Configuration
To tell the PSP to load the plugin, you must edit the vsh.txt (for XMB menus) and game.txt (for games) files inside the SEPLUGINS folder.
(Note: 1 enables the plugin; 0 disables it. On PSP Go models, replace ms0 with ef0 for internal storage). Cwcheat (short for "Cheat Master" or "CW Cheat")
Step 4: Reset VSH Restart the PSP to refresh the configuration. On 6.61 PRO-C2, this can usually be done via the Recovery Menu (Hold R trigger during boot) or by restarting the device completely.
CWCheat is a plugin for PSP custom firmware that lets you apply cheat codes (memory patches) to games. On 6.61 it’s commonly used with custom firmware like PRO, ME, or LME variants that support enabling plugins.
Firmware 6.61 is the final official firmware released by Sony for the PSP. It is widely considered the most stable and preferred firmware for hacking due to the availability of "Infinity" (a permanent patch) and modern CFW solutions like 6.61 PRO-C2 or ME (Minimal Edition). The major challenge for users is that the
Crucial Prerequisite: CWCheat is a homebrew plugin. It cannot be run on a stock, unmodified PSP running official 6.61 firmware. The user must first install Custom Firmware (CFW) or a Custom Firmware Enabler (CFW Enabler) to allow the execution of unsigned code and plugins.
For years, 6.60 was the king of CFW. However, 6.61 was the final official firmware Sony released (mostly to block exploits). If you have a newer game dump or want the most up-to-date compatibility, 6.61 Infinity is the way to go. CWCheat has been updated to run smoothly on this firmware.
Navigate to: seplugins > game.txt
This report details the functionality and installation procedures for CWCheat on the PlayStation Portable (PSP) running Official Firmware (OFW) version 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.