

You will receive the Keyblade and Donald and Goofy back, and it's time to finally time to beat the crap out of Riku. It will open for you when you try to walk through it and prepare for a Boss Fight. Head to the Gate even though it's closed. Now you can head back to the Castle Gates. When you reach the last switch there will be a Heartless, so cast magic and help beast kill it then release the Switch. You just push the next switch every time you reveal one. It's not too difficult so I'll leave out the details. This part has some switches to figure out how to make yourself a path. Inside is some good treasure and Blue Trinity which is useless to you now, so use magic and Beast to grab the treasure if you want then continue down the hall of the Waterway.

Take the bubble through and knock the wall down to enter the dungeon. Then use the Call command on the wall for Beast to smash it. Run across the room, because you can't do damage to Heartless and take the bubble on the right for a save point and treasure. You'll notice the gate is shut, but with your new found Glide ability, sail your way around the gate and take the lift down, also make sure you activate the orange lift control as well. When you enter the Castle gates section immediately take a right. When you reach the top of the shifting platforms a cutscene will occur, after which you will have the Beast but no Keyblade. There are no heartless and some really good treasure including a set of dalmatians so make sure you nab those. First thing to do is scoop up all the treasure here in the opening way. This is one of the most iconic locations in the entire series of Kingdom Hearts and is one of the non-Disney location. Welcome to the beautifully ominous castle of Hollow Bastion. Boss Encounter timestamps for the video below
