Completed the "Jakobs Fodder" mission

Killed an enemy plumber-style

Emerged victorious from an arena match

Killed the Vault Boss

Completed all missions in the Arid Badlands

Killed Flynt

The player has completed Sander Cohen's great masterpiece

Killed the Rakk Hive

Completed Ain't That a Kick in the Head.

The player has fully upgraded one weapon

The player has restored the forests of Arcadia

The player has successfully invented at least one item