Obtain three complete Angelic Hymn Gold LPs.

Complete a level on Regular difficulty or higher using only melee or grenades. (Solo only)

Solve the Rolling Crusher Puzzle

Purchase all COBRA characters

Kill 1000 enemies in the single player Campaign.

Mix a drink

(Don't forget to check title conditions.)

5 star guitar for 'Little Guitars', 'Cathedral', 'Spanish Fly', and 'Eruption.' (expert)

Play a game with a stranger in team ranked match

Father and Son - Follow the schedule with Shaun and put him to bed in a good mood

Complete all the Desert missions.

First kill with an Explosive Mine.

You got lucky with Skylar.