SuperFly is an extremely, extremely simple game. Or at least its controls are. Your task is to fly a vehicle at a steady pace through a scrolling cave system, with your only method of input being a single button. Press the button to give your vessel lift, release it and gravity will do its work. At all times, you must avoid crashing into the top and bottom of the cave, and avoid the obstacles which appear a screen apart. It is all rather similar to Dragonwing.
To spice things up, SuperFly has everything a modern game must have (save for complex controls and 3D graphics). It has different game modes, different vessels, a system of experience points to lock up new areas and modes, a picture gallery, a jukebox and even a gamma setting.