Spyro: A Hero's Tail

Other ending:
Finish the game with all 40 Dark Gems, 100 Light Gems, and 80 Dragon Eggs

Different ending:
Finish the game once. You have to find all 40 Dark Gems, 100 Light Gems,
and 80 Dragon Eggs.

Hidden options in "Secrets" menu:
Find the indicated amount of Dragon Eggs to unlock new options:

Concept art: Find 1 dragon eggs
Character Viewer: Find minimum 11 dragon eggs
Ember Model: Find minimum 21 dragon eggs
Flame Model: Find minimum 31 dragon eggs
Sgt. Byrd Mini-games: Find minimum 41 dragon eggs
Spyro Turret Mini-games: Find minimum 51 dragon eggs
Sparx Shooter Mini-games: Find minimum 61 dragon eggs
Blink Mini-Games: Find minimum 71 dragon eggs