Have 20 cells at one time on the Metal-Beam shield.

Play through a campaign without using any gems.

Remove all of King Cepheus's shields.

Deliver the final blow to Orion using a solar flare.

Use three different types of Yamato weapons in a boss fight.

Finish a level without crossing paths with your partner.

Defeat Cetus while its head is underwater.

Fill up all gem slots in a fully upgraded ship.

Finish a level after removing all fog of war.

Defeat Ursa Major.

Beat any level in two player mode.

Throw a gem into a station that is being used by another player.