Destroy your first enemy.

Defeat your first zone boss.

Reach Zone 3.

Reach Zone 6.

Defeat the final boss.

Destroy 1,000 enemies.

Destroy 25,000 enemies.

Clear 100 rounds.

Merge two mods.

Bring a mod to its max level.

Open a Legendary capsule.

Discover every mod in the Codex.

Unlock all 16 sockets.

Reroll weapon stats 25 times.

Land a perfect vent.

Land 10 perfect vents in a row.

Use EMP 50 times.

Clear a round without the Core taking damage.

Defeat a zone boss without the Core taking damage.

From Round 10 on, clear a round within 5 seconds of its last enemy spawning.

Mark 100 enemies.

Clear a round with Auto Run switched on.