Collect the clocks during the game to get bonus points. The points can be used to unlock the following bonuses:

Character Sketch (1 point)
Background Sketch (2 points)
Storyboard (2 points)
Backgrounds And Characters (1 point)
Behind The Scenes (2 points)
Intro Storyboard (3 points)
Hidden Autumn Level (3 points)
Hidden Past-Present Level (3 points)