I'm trying to identify an arcade game that I remember playing.
At the bottom was the player's rocket that you could move in left-right direction and possibly also a small amount up and down (not sure about this).
The attackers look different in each level, had a different color (always a single color) and attacked in a different formation, but always identical in the respective level. The quality of the graphics was similar to that of Space Invaders.
I can still remember two levels:
One in which the attackers were yellow spaceships, visually similar to your own rocket, which simply came down in a vertical direction.
Another where the attackers were green; the shape reminds me in the broadest sense of a fighter from Star Wars that destroys the Death Star.
The green attackers here constantly hit hooks, both up and down, but the main direction of movement is downward.
If one of the attackers is still down, the level starts all over again.
Additional difficulty was a limited amount of fuel.
What was this game called?