Look for a folder titled . If an ISO folder does not exist, manually create one in all capital letters.

Access the absolute root directory of your memory stick (this is the very first folder screen that opens when clicking on your drive).

If a project is packaged as a finalized disk image file (ending in .iso or .cso ), it follows a distinct placement structure:

I can provide direct, personalized troubleshooting for your specific setup!

Connect your PSP directly to your computer using your USB cord or an external adapter.

Drag and drop the extracted custom "Plants vs Zombies" folder (which must contain the EBOOT.PBP boot file) directly inside the folder.

Plants vs Zombies PSP CDRomance Install Guide 🧠 The Quest for PvZ on PSP

Safely disconnect your console, navigate to the system menu, and boot the application from the Memory Stick. Method B: Installing as a Game ISO/CSO

Because an official retail ISO does not exist for the PSP, "Plants vs. Zombies" on this platform primarily exists as a specialized "homebrew" application or fan project.