You pilot a Fighter Plane over a rainbow spectrum of enemy cities and blast them into smithereens. Your plane swoops lower and lower with each pass, kind of like space invaders only you are the invader. You can accelerate (turbo) which turns up the action, particularly when things get interesting as you progress through the spectrum and an Artillery ground unit starts defending the cities (again like space invaders in reverse). Watch your speed and timing, the ground unit will chase you and try to blast you down. It’s heavily armored but you can stun it for a brief respite if you hit it just right.

Make sure to grab the binary dated 7th September, as it fixes a flickering bug.