Changed body at Omicron
Escaped Theta
Failed at acquiring the DUNBAT
Discovered Theta
Crash-landed on peak Delta
Visit the Oceanarium
Visit the Crystal House
Collect 40 stars
Visit the Stone Hut
Complete the final level in two locations
Complete 15 levels
Collect 30 stars
Complete 12 levels
Complete 9 levels
Visit the Icehouse
Complete the final level in any location
Collect 20 stars
Complete 6 levels
Collect 10 stars
Complete 3 levels
Complete the first level
Complete level 100
Complete level 95
Complete level 90
Complete level 85
Complete level 80
Complete level 75
Complete level 70
Complete level 65
Complete level 60
Complete level 55
Complete level 50
Complete level 45
Complete level 40
Complete level 36
Complete level 32
Complete level 28
Complete level 24
Complete level 20
Complete level 16
Complete level 12
Complete level 8
Complete level 4
Discovered Lambda