You’ll want to head here first and complete the Hercules Cup before continuing to the other areas since you’ll learn the power of Yellow Trinity and you can use it. Use Trinity Push #1 in the Lobby to lock the Olympus Coliseum’s Keyhole.
Before you can go to Hollow Bastion you need to talk to Cid at Traverse Town. He’ll give you the Transform-G you need to reach the next area. Head to the Magician’s Study and fly across the water at the back end to reach a Chest with Dalmatians 1, 2 and 3 . Use Trinity Push #2 around the backside to reach a Chest with an AP up .
Land at the Queen’s Castle and go into the Lotus Forest. Climb up the tree and Glide across the fake pond to a Chest containing an Orichalcum . From here you can enter the Tea Party Garden where another Chest can be found holding a Flare-G . There is a second Chest at this location with Dalmatians 19, 20 and 21 inside. Glide across the hedges to yet another Chest to claim a Mythril .
Head to the Tree House. You’ll be able to Glide over to the boat that is suspended. Open the Chest for a Mythril .
Head to the Palace Gates and jump to the highest platform. Glide across to the Chest for an Osmose-G . If you head to the Hall at the Cave of Wonders you can find Trinity Push #3 and push the giant head into the pit. It would be used to reach some chests if you haven’t claimed them earlier with High Jump.
In Guillotine Square you can jump on a ledge next to the Lab Entranceway. Jump and Glide away from the entranceway to another ledge. From here you can jump into the pumpkin to find a Power Up within the Chest . There are two more Chests in the giant mouth to the right. Glide there and claim Dalmatians 70, 71 and 72 and an Elixir .
Venture to Moonlight Hill and enter the cemetery from the right side. Search around to find a bunch of Chests with a Dark Matter , Dalmatians 64, 65 and 66 , a Holy- G , and a Scissors-G .
Head to the Clock Tower and check what time the clock says. It corresponds with the game time and you’ll be able to open a door based on what time it is. Game time 1-12 hours would open the doors 1-12 but as time progresses you’ll need to figure out what time it will be in game. For example if the game clock reads as 33:41:20 the clock will read 9:41:20 and the 9:00 door will be lit and available for opening.
You can also head to the Hold and use Trinity Push #4 to enter a room with plenty of goodies. Open the Chests in this room to claim a Dark Matter , an Orichalcum , Dalmatians 85, 86 and 87 , and an upgrade to Aeorora . Quite the bountiful gift for using a single Trinity.