Trinity Marks are special symbols found on the ground in Kingdom Hearts. As long as you've learned the relevent Trinity Ability and have both Donald and Goofy in your party you can activate these marks and be rewarded with Items, Materials, Weapons, or just a bunch of Munny.
To gain access to Monstro you'll need to travel via Gummi ship between Agrabah and Atlantica or Halloween Town until you're swallowed by a whale. Technically this is one of the worlds that is completely missable on a playthrough, just like the 100 Acre Woods.
Deep Jungle is a world in Kingdom Hearts 1.5 Final Mix, here we'll help Tarzan save the Gorillas and gain the Cure magic spell.
Walkthrough for Olympus Coliseum in Kingdom Hearts 1.5 Final Mix. Covering all of the Games and rewards for completing them.
https://youtu.be/yHuNIBZZq0A Wonderland Kingdom Hearts 1.5 Final Mix Video Walkthrough Guide Wonderland Kingdom Hearts 1.5 Final Mix Walkthrough Wonderland Intro - Kingdom Hearts 1.5 Final Mix Once the cutscenes finish, follow the rabbit through the door and into the Bizarre Room. In this room be sure to push in the bed…
Welcome back to our third episode covering Traverse Town from Kingdom Hearts 1.5 Final Mix. We'll be completing a 100% playthrough for you guys to follow along with. We will cover all the chests, dalmations, cutscenes, and optional bosses throughout the game.