I discovered this out first-hand when loading up my copy of Pokémon Gold—whether or not I’d caught ‘em all again in 2001, I’ll by no means have the ability to verify, because the battery died sooner or later within the final quarter-century(!). Booting it up by the GB Operator was like switching it on for the primary time. Nevertheless, if it had nonetheless contained my surely-completed Pokédex, I’d have been in a position to copy that knowledge to my laptop computer’s onerous drive, substitute the battery within the cartridge (a fiddly process, however doable), after which load the save again onto it—magic.
Nevertheless, it’s price noting that at current, the whole lot depends on the cartridge’s precise save processes. Whereas digital “snapshot” saves—capturing a recreation at any given second—are on Epilogue’s roadmap, the characteristic will not be but out there. It is going to first be examined by the experimental “Nightly Builds” model of Playback (discovered on the backside of the downloads page) earlier than being totally carried out.
You too can use the GB Operator to dump your complete essential recreation knowledge from a cart you personally personal, permitting you to make a legal copy on your personal archival purposes (don’t share; that’s when it turns into piracy). The method itself is fast, relying on the sport’s dimension, however even the Sport Boy Advance’s largest video games had been 32 MB at most. Even when you do again up a recreation on this method, GB Operator nonetheless requires the unique cart to run something, although—you’ll be able to’t simply load the dumped ROM by the Playback software program.
Lastly, when you’re an aspiring developer or into retro-style indie video games, it permits you to switch homebrew video games created by the likes of GB Studio onto a flash cart and play them on an precise Sport Boy. It’s one other area of interest characteristic, however one which’s nice to have, permitting present-day creators to construct on the legacy of the beloved handhelds.
It’s actually onerous to search out a lot fault with the GB Operator. Even highlighting that it lacks actual portability—positive, it’s tiny, however needing to be hooked as much as a pc robs it of the pick-up-and-play enchantment of the pocket-sized consoles it homages—looks like splitting hairs. It in the end does the whole lot it guarantees, all for lower than $50.
It is a marvelous little bit of equipment, and the general efficiency and utility bode extraordinarily nicely for Epilogue’s upcoming SN Operator, which goals to do the identical for the Tremendous Nintendo as this does for the Sport Boy household (and a mysterious “?? Operator” to comply with). Should you’re in search of a simple, low-budget method to revisit or revive your Sport Boy assortment, that is your only option.

