Destroy all of the planet models in Drek's office.

Defeat Victor in the Phoenix.

Vanquish 5000 Plants.

Destroy 10 inactive Warbots inside the Quartu factory.

Shoot down the hydroharvesters on Pokitaru.

Shoot down the Blarg Battleships on Batalia.

Collect 30 brains for the Blarg Scientist on Gaspar.

Vanquish Gnomus, the Gnome King!

Defeat Yellow Gnome King.

Promote a single character 5 times.

Defeat Green Gnome King.

In solo ops, swap to another character.

Enter the Chamber of Gnomes.