When you first visit Traverse Town, you will eventually run into Pongo and Perdita. You find their 99 puppies have been kidnapped by the Heartless. They ask that Sora and company please help rescue them.
As you are traveling through the worlds, you will find chests containing 3 puppies each. when you open the chest, the puppies will automatically return to the mansion in Traverse town. As you find more puppies, you will be rewarded for your efforts. The rewards are pretty awesome, so you should really do your best to find all 99 puppies. Below is a list of where you will find these spotted wonders, as well as a reward chart.

Puppies	Location
	Traverse Town On the island behind Merlin's house. Need Glide and Super kick
	Traverse Town “Alley” The Red Trinity next to the Item Shop.
	Traverse Town “Item Workshop” On the desk.
	Traverse Town “Secret Waterway” by the stairs to Merlin's house.
	Wonderland “Queens Courtyard” On top of the hedges.
	Wonderland “Lotus Forest” On top of the trees.
	Wonderland “Tea Party Garden” On the hedges in the entrance.
	Olympus Coliseum “Coliseum Gates” Use the Blue Trinity.
	Deep Jungle “Hippo's Lagoon” On the trees.
	Deep Jungle “Vines 2” Must swing to the chests location
	Deep Jungle “Climbing Trees” Use the Blue Trinity.
	Deep Jungle “Camp” Use the Blue Trinity.
	Agrabah “Aladdin's House”
	Halloween Town “Bridge” Over the green river.
	Neverland “Clock Tower” Near Wendy
	Agrabah “Market” On a high ledge.
	Agrabah “Cave of Wonders (Entrance)” On top of the high pillar.
	Agrabah “Treasure Room” In one of the chests.
	Monstro “Chamber 3” On the high platforms.
	Wonderland “Queen's Courtyard” jump in the pot inside the Bizarre Room.
	Hollow Bastion “Grand Hall” Second time at Hollow Bastion.
	Halloween Town “Moonlight Hill” examine one of the doors in the outer area.
	Halloween Town “Guillotine Square” Under the stairs of Jack’s House.
	Halloween Town “Guillotine Square” Inside the mouth of the giant monster. Need to be able to glide to get to it.
	Monstro “Mouth” On the platforms near Geppetto’s House.
	Monstro “Chamber 3” On the higher platforms.
	Monstro “Chamber 5” On top of a barrel.
	Neverland “Pirate Ship's hold” In the rafters. Need the glide ability
	Neverland “Locked Room” Use the Yellow Trinity.
	Neverland “Captain's Room” Near the bed.
	Hollow Bastion “Raising Falls” On the water.
	Hollow Bastion “Castle Gates” Use Gravity on the floating chest
	Hollow Bastion “High Tower” Cast Gravity on the floating chest.

Rewards

When you reach a certain number of found puppies, you will get a reward when you visit Pongo And Perdita. Most treasures are common items found elsewhere. What makes this such a great little quest is the torn page for finding more than 51, and then the grand prize of a complete Gummi set, as well as a upgrade to your Aero spell. Definitely makes it well worth the effort of finding them.

# Found	Reward
12	Curaga-G
21	Firaga-G
30	Thundaga-G
42	Mythril Shard
51	Torn Page and Mythril
60	Megalixir
72	Orichalcum
81	Ultima-G
99	Aero upgrade Complete Gummi set

*NOTE* Finding all 99 dalmation puppies is one of the objectives needed to be done in order to get the secret ending after the final battle.