Matsu SNES is a Super Nintendo emulator.

Pros:
Reverse playback function (rewind) and Fast forward (0.25 to 16 times)
ZIP file support
Game pad support
Save the state data up to a maximum of 16 slot
Support GameGenie and PAR(Pro Action Rocky) codes
Box art support
Auto search for roms or choose a folder

Cons:
Some games have minor jerky scrolling with the background. Although a bit distracting, it does not interfere with game play.  (Tested on an HTC One M8 with PS3 controller)
It is stated on Google Play that this free version has ads... I played with it for about a half hour and never saw any.