You are in charge of a starship and your mission is to fly through the cooridor and drop bombs down the air-shafts to destroy the alien invaders in their spaceship below.
But first you must fly through the force of Thi Fighters and shoot them before they attack you with their deadly, accurate laser bombs. Use your bombs carefully, you have a limited number. Three levels of play. Full colour graphics with sound effects. Machine code. Arcade action game. Joystick required.
You start the game with five spaceships. Bonus ships are awarded every 10,000 points.
The right of the screen shows your current status. The figure at the top shows the current score; the one below the current skill level. Below this are the number of spaceships remaining.
The bar at the bottom of the screen indicates the amount of ammunition you have remaining on each spaceship. When this reaches the bottom and flashes, it indicates that you have run out of ammunition.
To replenish your bombs, you must take your spaceship back off the top of the screen.
The right joystick controls your spaceship, which appears at the top of the screen. The fire button drops the "bombs" in whichever direction the joystick lever is placed.
1/2/3 - Select Skill Level
F/S - Fast/Slow Speed Game
Destroying a Thi Fighter
Bombing an air-shaft
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