Lego Space Space subtheme in which the entire theme is "good", "bad", or "civilian". Life on Mars is a space theme released in 2001, around a time of increased curiosity about the red planet. The theme revolved around the concept of the lifeforms that could possibly exist on Mars. This was the first Space theme to feature two types of minifigures: human astronauts and Martian aliens. The sets denote peaceful coexistence between the two species on the planet Mars. The "Life on Mars" theme pioneered several unique aspects in Lego in general. It was the first Lego theme to utilize a pneumatic
Monuments of Mars with rescuing NASA astronauts that have gone missing in the fictional "monuments of Mars". Toward the end of each episode, groups of captured astronauts can be released from "energy rings". At the end of the final episode, markings on a "face" object reveal that some aliens were using Mars as a base to study humans from afar, but abandoned it and left their automatic intruder capture system switched on, hence the capture of the astronauts. In the game, the player controls an astronaut who must navigate through twenty levels on the planet Mars to finish the game. Most levels require