Need help with name of an old toy series

Fritzo

Lifer
Jan 3, 2001
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When I was a kid (late 70's, early 80's era), there was a series of toys that pretty much ripped off Star Wars. Does this sound familiar to anyone else?

It had this Darth Vader looking bad guy, but he had a round black helmet.

There was a robot that looked like a cylinder and had "tank tracks" to move around. This robot had a switch on the back that would make it blink on and off. It also had two arms- one with a + for a hand, and one with a - for a hand.

There was a silver humanoid guy with a green head.

Finally, the robot on tracks would fit in this large flying saucer ship. You could put the robot on a platform in the middle of the ship, swing the door closed, and snap the landing gear back into place. You could then flip a switch and the door would slowly "click" open, the landing gear would come down, and the robot you roll out of the ship on a ramp.

I want to say the toy line had the name Zod or something in it. Does anyone remember the name of these?