The phrase refers to the action of acquiring a specific video game, “Pokemon Platinum,” formatted for use on a Game Boy Advance (GBA) emulator. While “Pokemon Platinum” was originally released for the Nintendo DS, modifications exist that attempt to adapt or represent the game for the older GBA hardware or, more commonly, for playback on GBA emulators. These files, often referred to as ROMs, can be obtained from various online sources.
The appeal of this activity stems from a combination of factors. Nostalgia for the GBA era, the desire to experience a popular Nintendo DS title on older hardware (or emulators designed to mimic that hardware), and the relative ease of obtaining and playing ROMs all contribute. Historically, the distribution of such ROMs has raised legal concerns regarding copyright infringement, as the games are typically distributed without the permission of the copyright holders, Nintendo and The Pokemon Company.