Collect 50 Percent of Gems
Reach the end of the game.
Collect 80 percent of Gems
Collect All Gems
Go through 4 pipes at the same time.
Sniff your Butt
Make 40 turns in one stretch.
Unlock All the Doghouses.
Reach Doghouse 10
Reach Doghouse 5.
Reach Doghouse 20.
Reach Doghouse 30.
Reach Doghouse 50.
Reach Doghouse 40.
Complete the game (from Doghouse 1) without dying.