Fall to Earth
Get your first star
Finish levels 1 to 3
Pick up a life
Hit the bullseye for the first time
Get help from the goat
Finish levels 4 to 6
Fly a rocket for the first time
Use the shovel
Finish levels 7 to 9
Make a barrel explode
Fly with the bird
Finish levels 10 to 12
Get hit by the toilet for the first time
Play a bonus level
Achieve at least a C in each level
Find all collectables
See all the Walters billboards
Achieve an A in each level
Achieve at least a B in each level