Xevious - atari

Developer:  Atari

Year:  1982

Genre:  Shooter

Production:  5.295

Game Play

 Xevious takes place on Earth. An invading alien race has set up shop,  and it's up to the player to send 'em home. The game has a large number  of different ground and air-based targets of either belligerent or  non-belliegerent nature. In addition to the jumper-based difficulty  levels, the game also adapts its difficulty to the player. If the player  is successful against a type of attacker, an even deadlier type of  attacker shows up to challenge the player. 

Cheats and Tricks

There are structures called "Sol  Citadels" hidden throughout the game. The targeting sight will briefly  flash red whenever it is over one of these structures. Dropping a bomb  at that spot will first uncover the silo-like object (worth 1000 points)  and dropping another bomb on it will award another 1000 points.

There are also four special flags hidden at certain points in the  game. Uncovering and flying over a special flag will award an extra  life. The targeting sight will not flash when it is over a hidden flag.