Fall from a Great Height
Open a Pathway to Return to an Earlier Level
Solve a Puzzle Involving Portals
Change the Color of a Cube
Redirect Water Using a Cube
Redirect Water Through a Portal
Complete a Blue Level
Complete a Red Level
Complete a Yellow Level
Complete an Orange Level
Complete a Purple Level
Activate a Laser Beam
Complete a Green Level
Beat One Level of Each Color
Open the Final Door
See the Ending
Beat Every Level
Shrink Down Into a Small Model of a Level
Enter the Dark World
Collapse the Dark World
Grow a Tree
Grow a Double Gravity Tree
Power on a Water Wheel
Grow a World