The sound effects are all appropriate for this type of game. The samples used for the explosions are truly awesome, possibly the best we have heard, they are real speaker-blowers. Team 17 have tried to retain the feel of the old arcade machines by using very synthesized sounds for most of the guns and laser noises. Choose one of three available craft, which vary in speed or power, hit the button and get transported right into the heart of the action. The action takes place above a sprawling city.
Sky scrapers are everywhere, some already burning, but most still intact.
Search lights scan the sky in the distance, trying to pick out targets without any success. You start at the left of this 2-D environment and you have the freedom to move all over the screen. The enemy usually attacks from the right of the screen and scrolls leftwards, some will stay on screen for 30 seconds or so, others disappear within a few. The first attack wave consists of yellow spinning craft. They enter the battleground in large groups and pause halfway through their maneuvers, before opening up to reveal rapid fire lasers which are blasted simultaneously to clear the way ahead for them.