Lost Fleet: Use cannons to shoot down all vultures

Cloud Spires: Glide for 5+ seconds (and land safely!)

Received a coin during the curtain call.

Witnessed the earth's rebirth.

Defeated the Cauldron with Velvet.

Defeated Gallon with Oswald.

Completed Velvet's tale.

Dino Mines: As Agent 9, defeat an enemy with a ricochet shot

Sorceress's Lair: Defeat The Sorceress

Agent 9's Lab: As Agent 9, shoot down all the balloons

Scorch's Pit: Defeat Scorch

Bentley's Outpost: As Bentley, destroy all the totem poles

Completed Chapter 3 of Velvet's tale.