BigPEmu 1.22 arrives as BigInstinct hits public 1.0 release
BigPEmu 1.22 added cheat scripting and Blitter GPU interrupt support, while BigInstinct stepped out of Patreon-only testing into a public 1.0 release.
Rich Whitehouse just widened the scope of his emulation stack in two directions at once. BigPEmu, his Atari Jaguar emulator, reached version 1.22 on May 3, 2026, and the update landed beside a much bigger shift: BigInstinct, the separate Killer Instinct emulator built on the same core technology, moved into a public 1.0 release after living behind Patreon access.
BigPEmu 1.22 is the kind of update that matters to people who actually use the emulator as a tool, not just a launcher. The new cheat_codes script module can prompt users to toggle cheats from cheat_codes.json as soon as a software image loads, which turns cheat handling into something closer to a per-game workflow than a buried menu setting. The build also added support for the Blitter GPU interrupt, a meaningful accuracy change for Jaguar graphics behavior, while Whitehouse refined scripting APIs, reorganized parts of the BigMaster backend, and cleaned up per-game network configuration handling.
That fits the larger shape of BigPEmu itself. Whitehouse’s project page has long emphasized scripting, multiplayer, deterministic save states, TAS-style workflows, stereoscopic rendering, and native-resolution output, along with overclocking and underclocking of Jaguar cores, analog controller support, rotary controller support, Team Tap support, and virtual disc handling. In other words, this is an emulator built for people who want to poke at the hardware model, not just boot Alien vs. Predator and move on.
BigInstinct’s public debut shows the same philosophy pushed into arcade preservation. The emulator covers Killer Instinct and Killer Instinct 2, and Whitehouse’s site describes it as a project focused on smooth netplay and enhancement features. He has also tied it to DickTrainer Technology, his code-training system designed to improve performance without runtime code generation. Before launch, Whitehouse highlighted up to 16-frame rollback, and the script side of the project includes extras such as stereo audio enhancements, stereoscopic 3D rendering, a more advanced training mode, and gameplay modification tools.
The public release matters because BigInstinct had previously been limited to Patreon supporters after Whitehouse said funding had been found and the beta would go out to backers. That earlier 2025 rollout framed the project as a work-in-progress; the May 3 public 1.0 release turns it into a broader tool for players, testers, and preservation-minded users who want a cleaner way to study and enjoy Midway’s fighting games. Taken together, BigPEmu 1.22 and BigInstinct 1.0 show Whitehouse pushing the same ecosystem further into specialized hardware support, netplay, and enhancement-heavy emulation, which is exactly where the niche scene has been maturing.
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