It emulates the NES perfectly, since it exactly emulates the NES hardware on more powerful modern hardware. Every glitch will work exactly as it does on an act

It emulates the NES perfectly, since it exactly emulates the NES hardware on more powerful modern hardware. Every glitch will work exactly as it does on an actual NES. That was their goal. A few places have reviewed it to ensure the glitches work as expected -- sure enough, they do. They had some of the most hardcore folks in the emulation community included in the development. The guys who designed it wanted it to be reference quality. It supports all the options of every NES made, including full support for custom sound chips (like FDS versions of Castlevania 3, which sound amazing), and stuff like the PowerPak and Everdrive -- because to the game, it IS the NES. It's exactly why I'm getting one myself. As a speedrunner, reference quality (whether on hardware or software) is a requirement for me to have my world records be considered legit.