Billy Hatcher and the Giant Egg

Bonus Emblems
Finish one of the following:
Complete all missions with a "S" rank
Collect all coins
Complete all missions
Unlock the entire Egg Gallery.
(Thanks to d3zizi0n@hotmail.com)

Extra Lives
Find an egg with a 1-Up item in it, then keep hatching it repeatedly to get extra lives.
(Thanks to d3zizi0n@hotmail.com)

Sonic Eggs
Beat one world with each character, and then there will be a Sonic Egg in every level of that world.
Or, collect all five coins in each world to have access to one Sonic Egg in every world.
(Thanks to d3zizi0n@hotmail.com)

Unlock Bantam Scrambled
Finish the Save Bantam mission (Blizzard Castle mission 4).
(Thanks to d3zizi0n@hotmail.com)

Unlock Blizzard Castle Level 3
Hatch the bonus egg in Puyo Pop level.
(Thanks to d3zizi0n@hotmail.com)

Unlock Chick Poacher
Finish the Save Chick mission (Dino Mountain mission 4).
(Thanks to d3zizi0n@hotmail.com)

Unlock Circus Park Level 2
Hatch the bonus egg in Nights level.
(Thanks to d3zizi0n@hotmail.com)

Unlock Dino Mountain Level 2
Hatch the bonus egg in Billy Hatcher Hyper Shoot Easy level.
(Thanks to d3zizi0n@hotmail.com)

Unlock Ed
Beat the fourth level of Blizzard Castle.
(Thanks to chaos__dragon@hotmail.com)

Unlock Pirates Island Level 2
Hatch the bonus egg in Chu Chu Rocket level.
(Thanks to d3zizi0n@hotmail.com)

Unlock Rolly Roll
Finish the Save Rolly mission (Pirate Island mission 4).
(Thanks to d3zizi0n@hotmail.com)

Unlock Sand Ruin Level 2
Hatch the bonus egg in Billy Hatcher Hyper Shoot Hard level.
(Thanks to d3zizi0n@hotmail.com)