Game Controls
Full Screen Toogle
Alt + Enter
Pause Game
Shift + Escape
| Start | Numpad Enter |
| Escape | Esc |
| Fire | V |
| Move Left | Left |
| Move Right | Right |
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Additional Info

Copyright
© TAITO CORP. 1978, 2005 ALL RIGHTS RESERVED.
Downloading
This game is compatible with 64-bit Windows OS
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Overview
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Instructions & Tips
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Screenshots & Video
Basics
In this classic shooter, players maneuver their laser base left and right, shooting at the Invaders with the fire button. It only takes a single hit to destroy an Invader, but their strength is in numbers, and you have a limited rate of fire -- so don’t skimp on the ammunition!
Enemies
As you blast away at the aliens, they’ll be dropping bombs down on you. Even a single hit will cost you a station, so either dodge them or take cover behind any of the barriers that separate you from the enemy. Both you and the aliens can destroy the barriers with your missiles, which means you don’t want to depend on them too much. Thankfully, they are replenished at the start of each round.
Enemy Attacks
The Invaders start out slowly moving left to right, then back, dropping one step closer to your laser base each time they reach the edge of the screen. As they descend, their horizontal speed increases, and they get faster and harder to hit with each level cleared. In addition to the descending alien assault, every now and then a flying saucer will zip across the top of the screen, heading left to right. Shoot it down for extra bonus points!
Tip: Scoring
As with most arcade games of the era, the goal was to get the highest score. Each row of Invaders is worth a specific point value: the Invaders along the bottom two rows are worth ten points each, the Invaders in the middle two rows are worth 20 points each and the top row of Invaders are worth 30 points each. The flying saucers that randomly appear will net you from anywhere from 50 to 300 points!
Tip: Shooting Strategies
You can control the rate of the Invaders’ decent by shooting the outer columns of aliens first. Since they only drop down a line when reaching the edge of the screen, if you take out the vertical columns of the direction they are moving, it’s possible to eliminate almost all of them before they have even dropped a single row.
Tip: Barriers
Be sure to make good use of the four laser barriers, as they provide excellent shielding from the Invaders' fire. It’s even possible to shoot a small hole through the barrier you are hiding under and then use it to snipe the aliens as they descend.
Tip: Rate of Fire
Aim your shots carefully. If you don't connect with an alien or their shots, you will have to wait for your missile to clear the top of the screen before you can fire another.
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