The term in this specific context usually refers to a version of the video file optimized for mobile devices or handheld gaming consoles (such as the PlayStation Vita or Nintendo Switch with custom firmware). These files are typically: Encoded in MP4 (H.264) format for broad compatibility.
The pairing of Kira Noir (often a versatile lead) and MissBNasty (known for an aggressive style) suggests a power-struggle narrative typical of the series. hotandmean240404kiranoirandmissbnasty portable