Here is the full list of all 35 Stilt achievements.
Acquire 20 of the gifts placed throughout the levels.
Acquire 40 of the gifts placed throughout the levels.
Acquire 60 of the gifts placed throughout the levels.
Acquire 80 of the gifts placed throughout the levels.
Acquire 100 of the gifts placed throughout the levels.
Acquire 100 of the stamps placed throughout the levels.
Acquire 500 of the stamps placed throughout the levels.
Acquire 1000 of the stamps placed throughout the levels.
Acquire 1500 of the stamps placed throughout the levels.
Acquire 2000 of the stamps placed throughout the levels.
Earn a bronze medal as a reward in a level.
Earn a silver medal as a reward in a level.
Earn a gold medal as a reward in a level.
Earn a platinum medal as a reward in a level.
Earn all bronze medal rewards.
Earn all silver medal rewards.
Earn all gold medal rewards.
Earn all platinum medal rewards.
Acquire 6 crowns by reaching the crown balloons.
Acquire 12 crowns by reaching the crown balloons.
Acquire all crowns by reaching the crown balloons.
Reach the first hub world area.
Reach the seconds hub world area.
Reach the third hub world area.
Reach the fourth hub world area.
Reach the fifth hub world area.
Complete a level without dying.
Cover a distance of 50 kilometers on stilts.
Execute 10,000 bounces, proving that gravity is just a suggestion.
Open or smash open 500 packages.
Eliminate 500 enemies.
Defeat the octopus.
Scale to the summit of the volcano.
Capture a gift that bursts into smaller gifts.
Reach a pirate ship's highest point.