Sky Shark is a top-down shooter similar to Raiden. You start off with four lives and three bombs. With that, you blast through five levels of enemy-infested battlefields with as many as six gun upgrades, including the bombs. You can get more lives at certain point intervals, and more bombs can be found. As you progress, you'll face increasing difficulty.
The gameplay is fast-paced and action-packed. You control the Sky Shark as it navigates through levels, fighting against waves of enemies. With each level completed, you earn points and unlock new gun upgrades. You can choose from three difficulty levels to suit your skill level, and challenge a friend in two-player mode.