Take off from a carrier in the fateful year of 1942 and island-hop through 32 increasingly daunting levels, culminating in aerial combat over Tokyo. Gameplay in this overhead shooter is simple: blast enemies, snag power-ups and avoid collisions before re-landing on your flattop.

If you mow down planes in a formation, you'll receive one of six different power-ups, beginning with the double machine gun. Another power-up will obliterate all on-screen enemies.

As you advance on Tokyo, you'll be faced with bigger and badder swarms of enemy craft. Evade troublemakers by pressing the A Button to loop. It's best to avoid ambushes by staying near the screen's center.