Invinco © 1979 Sega.
Another game in spired by "Space Invaders", this one includes some innovation on the aliens : One row blinks in and out of view, another row's aliens roll so as to make themselves harder or easier to hit, and a 3rd row of aliens each take (at least) 3 hits to kill. A 4th row has aliens that turn into bombs, blowing up everything around them to make your job somewhat easier.
Game ID : 310-318
Main CPU : Zilog Z80 (@ 1.93356 Mhz)
Sound Chips : Samples
Screen orientation : Vertical
Video resolution : 224 x 256 pixels
Screen refresh : 60.00 Hz
Palette colors : 64
Players : 2
Control : 2-way joystick
Buttons : 1
Released during November 1979.
| Bottom Blue aliens | 100 points |
| White aliens | 200 points |
| Yellow aliens | 300 points |
| Light Blue Aliens | 400 ponts |
| Top Blue Aliens | 800 points |
| UFOs | 1,000 - 2,000 points |
Time your shots when aiming at certain targets. The white aliens turn invisible on you, so try to hit them when they're visible on the screen. Also, there's a period of time that the top aliens are invulnerable to your shots while they change to another form; wait a second or so before shooting them again so you don't waste shots and time.
Game's ROM.
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