This is Open Emu, an open source emulator for Mac computers, with this site you can choose from a wide variety of games and console emulations ranging from Virtual Boy to SNES.
With it’s iTunes like interface MAC users should have no issues navigating the menu selections, this emulator site offers a sleek, user friendly interface and a wide variety of games. The program organizes all of your games and puts them in one place for easy browsing and playing.
Most usb gaming controllers should work with OpenEmu. The program maps the following controllers PlayStation Dualshock 3 and Dualshock 4, Wiimote and Wii U Pro, Xbox 360 & 3rd party (driver required), Sega Saturn USB, PS3 Neo Geo Pad USB
Logitech series (Dual Action, Rumblepad 2, Gamepad F310/F510/F710), Gravis GamePad Pro, Retrode (SNES)
Check it out!