Control the little sky-Viking upstart with the [arrow] keys. Slash your sword with the [spacebar]. Key to successful sky-serpent-slaying is latching onto vulnerable spots and other areas, using the [arrow] keys in the direction you need to stab. That way you can hold on while your prey bucks and weaves and slithers about. You don't need to continue holding the [arrow] key to stay latched on, and you can detach yourself by using the [arrow] keys in the opposite direction. By sufficiently crushing every vulnerable spot, you defeat your snaky quarry and move onto the next level.
Because it's all about fighting and killing one gigantic magical creature per level, some players may recognize similarities between Sky Serpents and the PlayStation title Shadow of the Colossus. Indeed, Sky Serpents even manages to present some of the same majesty and tragic pathos in killing such creatures, even if the hero of Sky Serpents comes across as more of a twerp. The big difference is that Sky Serpents is airborne, and while the sticky de-latching controls can often frustrate, in general the game evokes the feeling of thrill-seeking recklessness that one must experience when one wrestles giant flying beasts with nothing but a pair of blades and a bold sense of derring-do. It's a rare game that makes playing such an amoral rake quite as fun. Play Sky Serpents, not to save the kingdom or fulfill the prophecy, but to prove that you are the best.