Complete the Arctic zone
Collect all the objects in the game
Get gold medals in all possible levels
Complete all the levels in the game
Complete the African zone
Complete the Asian zone
Complete the American zone
Get a gold medal in a speed level
Finish level with Derrick in reverse
Finish level in the air with Derrick in reverse
Eat 100 creatures in a level
Collect all the objects in a level
Get a gold medal
Eat a flock of birds