Launch a Total of 50 Birds
Murder a Total of 100 Pigs
Complete Chapter 2 - Level 21 without Going Over 3 Bars of Speed Throughout the Level
Throw a Bird at Max Speed
Beat Chapter 1 - Level 5
Beat Chapter 1 - Level 10
Beat 3 Levels in a Row without Going Faster the 6 Bars [No Pausing] [Must Have Atleast One Bird Remaining]
Beat Chapter 1 - Level 15
Complete all Levels of Chapter 1
Beat Chapter 2 - Level 5
Complete Chapter 2 - Level 21 and Beat the Game
Beat Chapter 2 - Level 10
Beat Chapter 2 - Level 15
Beat Chapter 1 - Level 2 with Only a Single Bird