You can access the game from the SD card or from internal storage using this app. SNES 9x 1.55 gives the best compatibility and 1.43 is also available for older systems. It is one of the best SNES emulators which works well with 1GHz+ devices. Higan does not work with old systems of lower end versions. It nearly supports 12 systems but the problem is you need a high-end system to have the best experience. It has the ability to work on commercial SNES. The interesting features in this emulator are its cycle-accurate emulation, SPC7110 emulation, super game boy emulation.
Higan is one of the best SNES emulators which also supports many video games.