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The Collider Badge
Neutron Obstacle
Level 2, 200 XP
Unlocked 19 Dec, 2015 @ 4:28am
Electron
1 of 5, Series 1
Neutron
2 of 5, Series 1
Proton
3 of 5, Series 1
Quark
4 of 5, Series 1
Boson
5 of 5, Series 1