Can you add games to RetroPie image?

Yes, you can add games to the RetroPie image. RetroPie is a software package that allows you to turn your Raspberry Pi into a retro gaming console. To add games, you need to connect your Raspberry Pi to a network and transfer game ROMs to the appropriate folder on the Pi. You can do this via a USB drive or by using the built-in file transfer protocol. Once the ROMs are added, RetroPie will automatically detect and display them in the corresponding emulator's menu, allowing you to play the games on your RetroPie console.

Open the USB drive in your file explorer. You'll now have new folders under “retropie”: You just need to copy your games files into the “roms” folder. Pick the folder corresponding to the game you want to install and copy it.