Orbital Bullet achievements

Kill 100 Crawler with the "Flamethrower"

Complete the game at Overcharge Level 1!

Unlock all achievements!

Beat "The Abandoned Commander" without taking a single hit!

Reach stage 150 in the Eternity Endless Mode with the Marauder class selected.

Make a long zip line ride!

Reach stage 150 in the Eternity Endless Mode with the Engineer class selected.

Complete the game at Overcharge Level 10!

Upgrade all the classes to their maximum.

Kill 100 elite enemies.

Max out every skill in the Skill Tree.

Unlock a gold weapon.