The reason this image is named Total Recall becomes clear the moment you boot up .

: Occupies nearly the full 512GB capacity, featuring thousands of games across 50+ classic consoles, including 3DO, Amiga, Dreamcast, N64, PlayStation 1, and PSP.

"Total Recall" is a custom disk image designed for the (typically the 4GB or 8GB RAM version). It is built on top of RetroPie (or sometimes a hybrid of RetroPie and Batocera, depending on the version), but it has been so heavily modified that it feels like a standalone console.