Unlockium Trophy in Mercury Hg

To unlock a challenge, you have to complete a combination of two to five levels broken up across the different groups. Once you have completed all three, the challenge will unlock. The 10 challenges and the levels you will need to complete are listed below.

• Chromatium – Potassium [K], Calcium [Ca], Ignitium [Ig]
• Pixellium – Francium [Fr], Titanium [Ti], Niobium [Nb]
• Conveyorium – Chromium [Cr], Silver [Ag], Sulfur [S], Helium [He]
• Precipicium – Manganese [Mn], Oxygen [O]
• Gravitium – Strontium [Sr], Fluorine [F], Argon [Ar]
• Magnetronium – Cobalt [Co], Rhodium [Rh], Nitrogen [N], Germanium [Ge]
• Platformium – Boron [B], Selenium [Se], Iodine [I], Chlorine [Cl]
• Clockworkium – Gallium [Ga], Tellerium [Te], Neon [Ne], Xenon [Xe]
• Mazium – Zirconium [Zr], Copper [Cu], Phosphorus [P], Bromine [Br]
• Groupium – Radium [Ra], Vanadium [V], Aluminum [Al], Tin [Sn], Krypton [Kr]