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Revision as of 21:59, 10 August 2018 by (talk) (Original and ported)
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Developer(s) BizHawk Team
Latest version 2.6.2
Active Yes
Platform(s) Windows
Emulates Multiple
Source code GitHub

BizHawk is a multi-system emulator designed predominantly around the production of Tool Assisted Speedruns (TAS). It is written in C# and requires .NET Framework 4.0 (in 1.X releases) or .NET Framework 4.6.1 (in 2.X releases) to run. BizHawk focuses on core accuracy and power user tools while still being an easy-to-use emulator for casual gaming.


Supported systems

Original and ported

System Based on code from:
Nintendo Entertainment System Original. PPU based on FCEUX, QuickNES
Super Nintendo Entertainment System bsnes v087, Snes9x
Nintendo 64 Mupen64Plus
(Super) Game Boy Gambatte, bsnes v087, Sameboy
Game Boy Color Gambatte,
Game Boy Advance VBA-Next, mGBA
Master System Original. Z80 CPU core based on cogwheel
Game Gear Original. Z80 CPU core based on cogwheel
SG-1000 Original. Z80 CPU core based on cogwheel
Genesis Genesis Plus GX, PicoDrive (32X only)
Saturn Mednafen
PlayStation Mednafen
PlayStation Portable (WIP) PPSSPP
PC Engine Original
PC-FX Mednafen
Atari 2600 Original
Atari 7800 Original, Emu7800
Atari Lynx Mednafen's Handy core
ColecoVision Original
Intellivision Original
TI-83 Original
Apple II Virtu
Commodore 64 Original
WonderSwan/Color Mednafen's Cygne core
Nintendo Virtual Boy Mednafen
Neo-Geo Pocket/Color Mednafen's NeoPop
Uzebox Uzem
ZX Spectrum Original


Core Compatibility
2048 Okay
FCEUmm Okay
mGBA Okay
Emux Okay (Game Boy/Game Boy Color only)
Final Burn Alpha (Arcade) Okay
ImageViewer Okay
Mednafen Okay (Neo Geo Pocket only)
Gambatte Okay
FFmpeg Okay
DeSmuME Okay
4DO Okay
bsnes Not Okay
bnes Not Okay
Mupen64Plus Not Okay
blueMSX Not Okay
fMSX Not Okay
FUSE Not Okay
Final Burn Alpha (Neo Geo) Not Okay
Handy Not Okay
DOSBox Not Okay
vecx Not Okay


  • Full screen support
  • Controller and hotkey mapping
  • Joypad support (for both controller and hotkeys)
  • Auto/rapid fire controls
  • Basic re-recording and rerecording
  • "Bullet-proof" rerecording
  • Frame/lag/re-recording counters
  • Input display
  • Auto-hold
  • Alpha version of "TAStudio"
  • RAM watching/poking tools
  • RAM searching
  • Lua scripting
  • Rewind
  • Libretro support (1.11.4 onwards)


For tool-assisted speedruns, BizHawk is king. Since 1.11.4, it has support for libretro cores, making it a good alternative for RetroArch, and adds TAS support for all compatible cores.