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
Dora the Explorer: Journey to the Purple Planet show, the game is about Dora who has a task to complete or a place to reach with her monkey, Boots. Dora has three, or, in some double-length episodes, four, places to go, with the final place as the destination. The game is about Dora and Boots who find some lost aliens from the Purple Planet. However, to take them home, she and Boots are required to collect keys from different planets to open the Space Door, leading to the Purple Planet. To fuel the rocket ship loaned to them, Dora and Boots need to collect 10 space gems in