Mix a drink

Kill 500 zombies

Change into 10 different pieces of clothing

Create a combo weapon

Solve the woes of the Hall of Champions.

Defeat 4 of the Order of No Quarter.

Impress Mona with your skills.

Finish any stage without dying.

Complete a difficulty 7 or higher mission without triggering any alarms.

Completed "Not of This World"

Got S rank in Bet the Future.

You cleared Chapter 9.

Take part in a successful final assault on an enemy's home planet by completing at least one mission.