Mercury Hg
21 Achievements
0-0h
PS3
Rarusium
Complete all the Discovery Mode levels in the Rare Earth Elements content pack.
6.5%
How to unlock the Rarusium achievement in Mercury Hg - Definitive Guide
emerald000
TrueAchievements
TrueAchievements
Complete the 30 levels in the Rare Earth download content. These are at the very bottom of the periodic table. You do not have to complete every goal in a level, you only have to reach the exit.
If you have any questions about a specific level, just comment below and I'll do what I can to help you.
If you have any questions about a specific level, just comment below and I'll do what I can to help you.