Greed!
10Complete a level having collected all of the pickups on that level
Pick up your first secret
Complete a level having collected all of the secrets in that level
Complete a level after having picked up at least half of all the secrets in the game
Sherlock
20Pick up all the secrets in the game and complete the level you're on
Complete the first level of the game
Ship Ahoy!
15Get to the second world of the game
Robots
20Get to the third world of the game
Get to Mustacho's lair and defeat him
Fleetfooted
10Complete a level faster than the allotted time
Speed demon
20Beat the speed run time on all levels
Complete the game having found all pickups and secrets, and completed every speed run