PuNES - Portable NES Emulator

puNES is ranked as the second most accurate NES/FDS emulator behind Mesen, with a score of 98.08%. However these test ROMs, unfortunately, don't test everything that matters for accurate emulation (and in some cases, test stuff that doesn't matter for emulating any games). So the test results may be a bit misleading, but that does not mean it is not a high accuracy emulator. In addition to the standard color pallettes used by most NES emulators, puNES uses a color palette derived from an actual TV.

Like many other Famicom emulators (such as Nestopia), it has cycle-accurate CPU emulation. puNES also has some nice, standard emu options, including a good input configuration UI and rewind functionality.