2.8 hrs on record
The Collider Badge
Positronic Obstacle
Level 3, 300 XP
Unlocked 17 Dec, 2015 @ 6:56pm
Electron
1 of 5, Series 1
Neutron
2 of 5, Series 1
Proton
3 of 5, Series 1
(2)
Quark
4 of 5, Series 1
(1)
Boson
5 of 5, Series 1