Mario Knight 2 (SMB2 Hack) ROM Download for Nintendo (NES) on Emulator Games. Play Mario Knight 2 (SMB2 Hack) game that is available in the United States of America (USA) version only on this website. Mario Knight 2 (SMB2 Hack) is a Nintendo emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Super Mario Bros 3, Knight Rider and Super Mario Bros 2 - Christmas Edition (SMB2 Hack) as shown below. Mario Knight 2 (SMB2 Hack) works on all your devices in high quality.