Toy Story 3: The Video Game Cheats and Tips

When you complete the indicated levels in Adventure mode the corresponding mini-game for Woody, BUzz and the Aliens will become unlocked.
Buzz Adventures - Aliens:
Complete 'City Dump' level.
Buzz Adventures - Secret Base of Zurg:
Complete 'Keep Cool!' level.
Buzz Adventures - Zurgbots Factory:
Complete 'Strawberry smells...' level.
Little Green Men - Escape!:
Complete 'The Claw!!!' level.
Woody's Roundup - Lost in Ghost Town:
Complete 'Goodbye Woody' level.
Woody's Roundup - Save the Lady:
Complete 'Family-minded' level.
Woody's Roundup - The Blazing Inferno!:
Complete 'Eye in the Sky' level.

At the 'Extras' menu enter the following codes to enable the corresponding effect.
Unlock 2,000 Gold Coins :

Unlock Gladiator Toy :

Unlock Boofy Hair and Baseball Cap:

Get the following weapons at the shop for the listed price when you complete the corresponding level in Story mode.
Unlock UFO Gun ($2,000):
Complete the level 'Blow up the Dam'.
Unlock Cow Cannon ($2,500):
Complete the level 'Get Cows To Higher Ground'.