This game is made by Sega in the year 1987. This game is a sci-fi-shooter in a space-station. With the stick you move, with the A-Button you shoot, with B you can see your score and how much hostages are left. You must rescue your comrades and kill aliens. This game was first a coin-op. The first spacestation is relative small. There are extraweapons like laser or flame thrower. Have you rescued all hostages you must find the exit.

This game makes much fun, it is better than the C64-version. But before you can enter the next station you must defeat an endboss. You see only a section of the station, the screen scrolls in all directions. But the alien dont move jerk-free. Maybe the graphics could look better. But the controls are much better than on homecomputers. The levels later are bigger, maybe you must paint maps. The graphics look in other level different.
The controls are good, it is good to play. There is music in the game.

I played it the first half of December 2019

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