Defeated Abaddon.

Kill Kuroki at the end of the Museum.

Craft a weapon or gear piece of 'superior' rarity or higher.

Defeat 10 Vampire Kids.

Damage an enemy in your Event Horizon using your own projectile.

Find and accept all of Nichole's Infernal Pacts across an entire run, and live to tell the tale.

Use Cheesy Zombies on a Necro.

Kill an Ent with Bleeding damage.

Toot on an enemy faction leader while dead.

Kill 50 Pooplets in one battle.

Heal another player using stims.

Defeat Cartman without damaging any stationary decoy.

Increase the Rarity of 10 upgrades to Rare or better.