Kingdom Hearts 3D: Dream Drop Distance/Traverse Town

Sora
Once you complete the dive and enter Traverse Town, a cutscene plays where Sora takes in his surroundings and meets The World Ends With You's Neku Sakuraba - a "Player" in "the Game." After the scene, you'll be introduced to Flowmotion with an optional mini-tutorial. Follow the path up the flight of stairs and eventually, you'll find a Save Point. Right past it are the double doors that lead to Traverse Town's Second District.

Head down the center and you'll find Neku. After the scene, you'll face your first battle against some common Dream Eaters, known as Nightmares. Try out some Flowmotion combat and once you defeat all of the Nightmares, the game will show you how to create Spirits - Dream Eaters that aid you in battle. Follow Neku down the path and go through the door leading to the Third District. The next cutscene will introduce you to one of the game's primary features: dropping.

Underground
Once you drop from Riku's side of Traverse Town back into Sora's, turn back and follow the path for a chest containing Block-it Chocolate, then up the ramp and to the light-up gizmo on the wall. Jump up and hack at it a few times to unlock the door back to the First District. Enter it (take note of the Link Portal along the way) and head to the area you started out in (there's a treasure chest containing a Potion up the staircase to the left of the main square). Once you defeat the area's Nightmares, go straight to the mailbox. Examine it, and then examine the spot it reveals. You'll now be transported to a new, underground area of Traverse Town: the Post Office.

Ride the rail until Sora is forced off, at which point you can take care of the Nightmares that appear before you and then use Reality Shift against the presents in the corner. Open the chest for a Rampant Figment, then jump down and follow the conveyer belt. You should come across a large red structure, where you'll find a chest containing a Potion. Get to the end of the conveyer belt, take the stairs, and open the chest past the purple rail for an Ice Dream Cone before you ride the purple rail. Next, get on the yellow rail, and jump off when you see 3A on the wall. Use Reality Shift on the presents again for a chest containing Vibrant Fantasy. Now hop back onto the yellow rail and take the green rail once you see it to the exit. Save and move on to the next area, the Fountain Plaza.

Fountain Plaza and the Fourth District
Upon entering the area, you'll find another Link Portal which lets you borrow some powerful Spirits. Follow the path and some boxes will give you the Reality Shift queue; claim your reward in the form of an Intrepid Figment. Continue down the main path (take note of the small path straying off the main path which leads to a Balloon) until you reach the main area through the tunnel. Find the boxes along the left wall, jump up to the roof, then jump across to the other roof for a treasure chest containing an Ice Dream Cone. Now drop back down, follow the path past the fountain, and enter Traverse Town's Fourth District.

Jump up onto the boxes straight ahead for a chest containing a Shield Cookie, then drop back down and follow the staircase to the left. Find the chest containing another Potion, then go back to the staircase and find the boxes to the left. Climb up the building and use Flowmotion to get to the higher area. Open the chest nearby for a Water Barrel. Follow these roofs until you reach another chest at the end (where you'll find a Hi-Potion), then go back and jump across the street to some more blue roofs. Find the chest for another Ice Dream Cone, then jump up the tower until you reach the top for a Balloon. Drop down to the right, open the chest (you'll end up with another Potion), and follow the path for a cutscene. Afterward, turn around for a Block-it Chocolate, defeat the area's enemies, and check out the Moogle Shop. Once you're finished browsing (purchasing the two recipes is recommended, unless you have them already), head through the door to the right for a cutscene and a boss battle.

Boss: Hockomonkey
Hockomonkey is the first boss of the game, but that doesn't mean it should be taken lightly. Make sure you go into the battle with some Potions in your deck. You'll start off by facing Hockomonkey on a glass roof. It'll hop around and dislodge its fists for some swings at Sora. Otherwise, it doesn't have much variety in its attacks (besides one in which it grabs Sora and punches him continually before it lets him go, though it doesn't perform this one very often). Going for a simple hack-and-slash strategy won't work against Hockomonkey though, and neither will spamming magic commands. You'll have to utilize your dangerous new weapon here: Flowmotion. This troublesome Nightmare may hop around a lot, but so can Sora. Bounce off the walls and use the exclusive flowmotion attacks and you won't leave Hockomonkey much time to land its punches.

When you get its health low enough, the glass roof will shatter, sending Sora and the Nightmare down onto the floor below. There won't be much different in here besides a change of scenery, but using flowmotion attacks should be a bit easier to land with the close walls. Defeat it for your rewards: an increase in Sora's max health and deck capacity, and a new, more powerful Keyblade: Skull Noise. Watch the ending scene and move on to the next world.

Riku
After completing Riku's dive (which is a bit more challenging than Sora's) you'll get a scene in which Joshua introduces himself and explains the concept of portals to Riku. Your new goal is to find a girl named Rhyme. Turn around and follow the path until you find a staircase (getting rid of the plentiful amount of Nightmares along the way for some easy experience) leading to the Second District. Upon entering, Joshua will give you a Komory Bat Recipe and you can get started on making a Spirit for Riku. A battle will then begin in which you have to defeat Beat's spirit, the Kooma Panda. Afterward, you'll get a flashback on the Keyblade War and Riku will drop.

As soon as you're back on Riku's side of Traverse Town, your attention will be directed toward Shiki, being chased by Nightmares. Follow her into the First District to rescue her, then look for the now-missing Joshua and Beat by heading to the Back Streets (the path opposite the entrance to the Third District). Follow the path up to the tunnels, take a left, and head to higher ground (taking note of the Laguna Link Portal along the way). Here you'll find a chest in the corner containing a Potion. Don't continue up and take the path to the other sewer area instead. Ride the rail until Riku is forced off and you'll find a chest containing Thunder. Continue riding the rail until you find a chest containing ten Paint Guns: Sky Blue. Find the area with the Link Portal you encountered earlier, and this time, take the other path. You should find a plethora of Nightmares and a Shield Cookie before you make it out the other side. Grab the Potion and follow the high path to the Fountain Plaza.

Fountain Plaza and the Fourth District
Find the stack of boxes which let you perform Reality Shift and take the Vibrant Fantasy. Follow the path up to the Fountain Plaza's main area and follow the right wall to some stacked boxes. Climb up to the top and jump across the gap for an Ice Dream Cone. Take the path behind the fountain to reach the Fourth District. Once you enter this area, advance a bit for another Link Portal (Squall) and then take a right for another Potion. Now take a left until you find another chest containing a Confetti Candy. As in the Fourth District Sora traversed, you should find many items littered across the rooftops. Climb up the building in this area for an Intrepid Figment, then find the blue rooftops around this area for a Balloon. Jump to the rooftops across the street for another Confetti Candy and climb up the tower for some Treasure Goggles. Ride the rail back to the entrance of the Fourth District for a Potion.

Once you've grabbed all the items, continue down the path to the end of the Fourth District, where you'll find the Moogle Shop and the Flick Rush Moogle. Find the chest by this moogle for a Shield Cookie, then head to the exit for a scene and a boss fight.

Boss: Hockomonkey
Riku faces the same boss as Sora does on his side of Traverse Town, but there are differences to the battle in general and Hockomonkey's behavior. The glass roof is completely absent here, and you instead start right from the inside of the building. Unfortunately, this gives Hockomonkey a set-up that may just be more annoying than what Sora had to go up against. While it stays in one place, it'll either throw whatever it can grab at Riku, or it'll send its many hands after you. Each hand has its own health bar, so you may want to get rid of these before continuing the battle. When Hockomonkey gets on Riku's level, giving Riku the opportunity to attack, get ready to use a bunch of flowmotion attacks. You don't get many opportunities between its throw and hand phases, so get aggressive, and don't forget to heal. Once you defeat Hockomonkey, you'll get the same rewards for Riku as you get for Sora; an increase in max health and deck capacity, and a new Keyblade: Skull Noise.