: Unlike more visually demanding mods like AutoBleem or BleemSync, RetroBoot boots directly into RetroArch, bypassing the stock carousel interface to save system resources.
likely designates the version build, implying compatibility with RetroArch v1.2.1 cores or a specific release year build. retroboot 121
Once you provide more details, I will write a thorough, factual report for you. : Unlike more visually demanding mods like AutoBleem