Sky Shark

Sky Shark (released in Japan as "Hi Sho Zame", and in Europe as "Flying Shark")is a military-themed vertically scrolling shoot 'em up game in which players take control of the titular biplane through five increasingly difficult levels in order to defeat an assortment of military enemy forces like tanks, battleships, airplanes and artillery as the main objective. The title initially appears to be very standard, as players control their plane over a constantly scrolling background and the scenery never stops moving until a runway is reached. Players have only two weapons at their disposal: the standard shot that travels a max distance of the screen's height and three bombs.

The bombs are powerful weapons capable of obliterating any enemy caught within its blast radius. Various items are scattered through every stage that appear by destroying certain enemies: Shooting down colored waves of enemy planes spawn items like "S" power-up icons, point bonuses and extra lives. Certain enemies on the ground spawn "B" icons that increases the player's bomb stock when destroyed.