BizHawk

BizHawk is a complete multi-system emulator for Windows that allows you to run games from a large number of classic consoles. Although it has a very simple interface, it incorporates several tools designed for speedruns and emulation testing. In fact, it integrates its own in-game video and audio recording option.

Currently, BizHawk supports the following platforms: NES/Famicom, Nintendo 64, Virtual Boy, Game Boy Advance, Color and Classic, Sony PlayStation, SEGA Master System, Game Gear, SG-1000, Sega-CD, Sega Saturn, PC Engine, Atari 2600 and 7800, Atari Lynx, ColecoVision, the TI-83 calculator, Neo Geo Pocket, WonderSwan, Apple II, Mattel Intellivision, Commodore 64, Vectrex and ZX Spectrum. In all these cases, the emulator uses APIs of external emulators to run them, for example, PicoDrive for SEGA and Snes9x for Super Nintendo.

Among the many tools included in BizHawk, you'll find the possibility to use several save slots, slow down the emulation and even pause it to advance it frame by frame, a debugging system to analyze the emulation to the millimeter and, in short, all kinds of high-profile functions designed for users who want to get the most from the video game emulation to beat high scores or time records.

To sum it up, BizHawk is a fantastic emulator that covers an endless number of platforms, making it possibly one of the best all-in-one emulators for emulating classic machines (perhaps only with the permission of RetroArch). Of course, such a degree of breadth means that certain machines are not emulated with the most accurate software, but that's the price to pay for such a complete system.