Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Mercury Points is the virtual currency used in Spacelords to obtain numerous items in the game. You can purchase Mercury Points in different sized packs of various quantities: 550, 1200, 2500, 6500 and 13500. You receive a discount when purchasing the largest sized packs. Mercury Points allow you to unlock premium skins, loadouts, or can be exchanged for Gold.