Perform 100 pep signals.

Achieve mastery level 10 with a melee weapon.

Fully upgrade a weapon brand.

Obtain the God Key.

Enter the Lab X.

Stealthily kill 50 enemies.

Gore 150 enemies.

Kill 500 enemies.

Defeat the Übergarde in Brother 3.

Kill 75 enemies using the weapon type that's most effective against their shield type.

Kill 20 drones.

Obtain 10 weapon upgrades.

Pick up 250 loot supplies.