To play games on your Cobalto V7, you will need to add ROMs to your Recalbox installation. Here are the steps:
SSH into Recalbox (IP Address: root/recalboxroot) or edit the config.txt on the boot partition via Windows PC. Add these lines for the Pi 3: Cobalto V7 - 64gb - Recalbox 8.1.1 - Raspberry Pi3 Download
If you have a slow internet connection or hate scraping, Cobalto V7 is a lifesaver. If you are a purist who only wants 100 specific games, build your own. To play games on your Cobalto V7, you