The main reason the Humans went to Mars was to search for the Energy Crystals. The crystals could be used to power their ships and stations. These crystals are found in every Mars Mission set.
The sets of this include a pump system, which was previously seen in Life on Mars. The pump system of this theme was orange and white, which is also the color scheme of the entire product line.
The Mars Mission website had a very popular game, called CrystalAlien Conflict. The game has many codes, which unlock bonus levels.
- 7690 MB-01 Eagle Command Base
- 7691 ETX Alien Mothership Assault
- 7692 MX-71 Recon Dropship
- 7693 ETX Alien Strike
- 7694 MT-31 Trike
- 7695 MX-11 Astro Fighter
- 7697 MT-51 Claw-Tank Ambush
- 7699 MT-101 Armoured Drilling Unit
- 5616 Mini Robot
- 5617 Alien Jet
- 5619 Crystal Hawk
- 7644 MX-81 Hypersonic Operations Aircraft
- 7645 MT-61 Crystal Reaper
- 7646 ETX Alien Infiltrator
- 7647 MX-41 Switch Fighter
- 7648 MT-21 Mobile Mining Unit
- 7649 MT-201 Ultra-Drill Walker
- P7231c Mars Mission Fountain Pen
- 852019 Space Hero Air Blaster