WinKawaks is one of the most appreciated emulators for NeoGeo and Capcom hardware. It is probably the most complete option on the market and comes with a high degree of compatibility. Bring back old NeoGeo games like The Last Blade, Blazing Star or Shock Troopers, but you can also experience Capcom classics like Resident Evil 4, Dragon's Dogma or Resident Evil 6, among many others. Basically, you can try out any game out there.
The emulator is open source and perfectly free. You can modify frames, take screenshots, take advantage of timing and sprites too. Some games may face a few bugs, but they will not kill the experience. The exquisite netplay feature is one of the top functions. Joystick compatibility is worth some appreciation too, while the great FPS functionality prevents lag. WinKawaks will require a bit of configuration, but once you are done with the settings, the emulator is a breeze.