Trinity

Trinity Mark is a special action present in Kingdom Hearts, not to be confused with the offensive ability Trinity, the effect happens when Sora is near to a coloured Mickey Mark, the last command box will change to Trinity. Pressing it will allow Sora, Donald and Goofy to do various commands depending on the Colour of the Mickey Emblem, it can either open new paths, obtain rare treasure. Some is even required to complete Jimminy's Journal and progress the story line. A total of 5 coloured emblem can be learnt.
 * It should be noted that Trinity Mark can only be accessed when Donald and Goofy are alongside Sora. Replacing other world characters/allies, will cancel this ability.

Blue
Sora, Donald and Goofy bounce on the floor, dropping a large sum of Gil, HP orbs, MP orbs, or items.

Red
Sora, Donald and Goofy rams to break blocked paths. Used mostly in breaking cages or walls.

Green
Sora, Donald and Goofy climb on top of each other to reach something higher. Used mostly in obtaining objects stored in a high place.

Yellow
Sora, Donald and Goofy pushes an object. Mostly used to open hidden paths.

White
The trio raises and points their weapons, summoning an item box. Used mostly in obtaining treasures.

Traverse Town
Blue:
 * First District, by the World Exit.
 * First District, by the Cafe.
 * Third District, head towards the ramps on the sides of the wall, fountains.

Red:
 * First District, alleyway.
 * Second District, by the gates to the Waterway.
 * Second District, Atop the Gizmo Shop.

Green:
 * First District, Cid's Accessory Shop, Green Trinity required to gain access to Synthesis Shop.

Yellow
 * Behind Merlin's House.

White
 * Secret Waterway, along Leon.

Wonderland
Blue:
 * Lotus Forest, in the groove near the entrance.
 * Lotus Forest, further towards the second entrance.

Green
 * Rabbit Hole, near the Save Point.

White
 * Lotus Forest, on the side of the picture in Bizzare Room; Grants Lady Luck

Olympus Coliseum
Blue
 * By the Gate, on the left side,
 * Another Trinity Mark accessible in the other side.

Green
 * In front the Olympus Gates.

Yellow
 * Lobby, by the stone block; Unlocks the World Keyhole's location.

White
 * In front of Coliseum Gates.

Deep Jungle
Blue
 * In the campsite
 * a high platform in Climbing Trees (reachable via swinging vines or glide)

Green
 * Hidden spot in the Treehouse

White
 * Waterfall Cavern, in front of the Keyhole.

Agrabah
Blue
 * Bazaar, atop a platform.
 * Cave of Wonders, inside the Silent Chamber.

Red
 * Cave of Wonders, inside the Treasure Room.

Green
 * Storage Room, off the Plaza.

Yellow
 * Cave of Wonders, in the Hall.

White Cave of Wonders, main entrance.

Monstro
Blue
 * Mouth, atop a platform.
 * Throat, on one of the spiral platforms.
 * Chamber 5.

Green
 * Gepetto's shelter, reachable via High Jump and Glide.
 * Mouth.

White
 * Chamber 6.

Halloween Town
Red
 * Entrance of Oogie's Manor, Only accessible before defeating Oogie.

White
 * Moonlight Hill

Alantica
White
 * Triton's Palace, in the center beneath the conch shell.

Neverland
Green
 * Ship's Cabin, at the entrance of Hook's Cabin.

Yellow
 * Ship's Hold, on a platform halfway up to the top.

White
 * Up on the deck of the ship.

Hollow Bastion
Blue
 * Great Crest, after defeating Maleficent Dragon;
 * Underway Dungeon

Green
 * Second floor of the Library.

Red
 * Entrance Hall, second level, in front of the statue.

White
 * On the peak of the platform in Rising Falls.