BizHawk vs John NESS

BizHawk is a free multi-system emulator for Windows and Linux, built around the EmuHawk interface. It is aimed at Tool-Assisted Speedrunners and combines playback with recording and debugging. The project lists systems including 3DO, Apple II, arcade machines, Atari, Commodore, Nintendo, Sega, and PlayStation consoles. EmuHawk provides 10 hotkey-operated save slots as well as unlimited named savestates, along with speed adjustment, frame stepping, and rewind. Users can record input as TAS movies and save screenshots, audio, and video. Debugging tools let users inspect, search, and edit memory across emulated hardware, while Lua or C#.NET can control the core and frontend programmatically. Keyboard, mouse, and gamepad hotkeys can be rebound, and an input mapper covers emulated gamepads and peripherals. The Linux build targets x86_64 and omits Mupen64Plus for N64. Current releases are unavailable on Android and iOS; macOS use is limited to older releases or technical workarounds.

John NESS is a free Android multi-emulator for Android 6.0 and later. It requires users’ own game files, searches internal storage and SD cards for them, and supports zipped files. The app uses an original engine with high-quality rendering and graphics enhancements. Save states include previews, while screenshots and speed controls cover slow motion or fast forward from x0.25 to x16. A virtual on-screen keypad has customizable keys and layout, plus turbo buttons. Bluetooth and MOGA controllers are supported. Dropbox support requires John DataSync. The app contains ads, with an in-app purchase option to remove them. Google Play reports no data collected or shared with third parties, while the maker’s privacy policy says Google Play Services and AdMob may collect information used to identify users. The developer is MOGORI WORKS CO., LTD. in Kobe, Japan, with support at [email protected].