Mercury Hg
21 Achievements
0-0h
PS3
Gravichallengium
Discover all 5 of the Challenges in the Heavy Elements content pack.
7.1%
How to unlock the Gravichallengium achievement in Mercury Hg - Definitive Guide
FailedSeppuku
TrueAchievements
TrueAchievements
You'll get this on the way to completing all the DLC levels. You don't have to finish the challenge levels, just unlock them.
The levels you need to complete are;
Mazium2: 72, 78, 85
Downhillium: 12, 107, 111, 83
Precipium2: 25, 109, 84
Megnetronium2: 79, 113, 117
Slopium: 73, 108, 112, 116
The levels you need to complete are;
Mazium2: 72, 78, 85
Downhillium: 12, 107, 111, 83
Precipium2: 25, 109, 84
Megnetronium2: 79, 113, 117
Slopium: 73, 108, 112, 116