Kingdom Hearts 3D: Dream Drop Distance/La Cité des Cloches

Sora
The world begins with a scene. Sora hears a mention of the word "monsters" and runs for it, ready to get rid of the attacking Dream Eaters. After the scene, you'll be introduced to this world's Reality Shift, in which you can connect lines on the touch screen to create traps for enemies. You will then be in control of Sora in the town, though before beginning, make sure you make all the necessary updates in the menus; edit the deck to account for the new empty slot, spend some time with your Dream Eaters to make them more powerful by unlocking new abilities, and replace the Kingdom Key with the stronger Skull Noise.

In front of you is a Save Point and a Moogle Shop. Stock up on potions and buy the new recipe while you're at it. You'll be able to collect the materials in this world to form the new Dream Eater. When you're done with these, exit through the opening between them to continue the story. After the scene, fight the group of Dream Eaters that attack. You will be introduced to some new, stronger enemies here, such as Zolephants (which Sora may roll into to initiate Flowmotion attacks as was possible on Kooma Pandas) and Necho Cats (which have the ability to paralyze Sora by throwing orbs of thunder at him). Defeat them all to obtain a Zolephant Recipe. Before heading into the cathedral, clear out the area for treasures. Go back by the entrance and walk along the west wall for a chest containing a Potion, then the south wall to find a chest containing an Ice Dream Cone. Keep walking along this wall and stray off when you see the stage; there is a chest on the visible side of it containing a Balloon. Now walk along the east wall and all the way to the north you should find the final chest, with Block-it Chocolate inside. Once that's done, head into the cathedral.

Cathedral
Keep moving forward and defeat the Dream Eaters which obstruct your path. A wide range of enemies are featured here, including returning ones from Traverse Town. Once the area is cleared, head to the wall right of the center for a chest containing a Potion. Keep heading up this wall until you reach the rounded wall at the end of the building; to the left of one of the pillars here is another chest, this one holding Drop-Me-Not. Now, keep walking across to the west wall and in the second gap in the wall you'll find a Block-it Chocolate. Now, go back to the head of the cathedral, where the large statue is situated. There should be a Reality Shift icon here. Press   to activate it, and draw a line to the nearest dot to make Sora glide up to the cathedral's upper level.

Walk, again, to the end of the round northern-most wall. Defeat the enemies that spawn here, and open the chest for a Royal Cake. Keep walking to the western side of this level to find another Reality Shift icon at the edge of the ledge, directly across from another. Use it to access the other ledge by drawing a line south to it. Alternatively, it is possible to reach it using Flowmotion by leaping off of the walls. Go right to the western wall to find another Drop-Me-Not behind a screen. Defeat the enemies that spawn here and use Reality Shift one more time to get to the ledge across this one. Open the chest for the area's final treasure, a Water Barrel. Drop back down to the floor below and access the staircase by the entrance to move on. While on the balcony, use the only other door here for a scene.

After the scene, you will obtain a Flashback: "Frollo Cautions Quasimodo". This can either be viewed now, or seen later in the menu under "Mementos". Don't exit the Bell Tower just yet; hop on the box and up the platform for a Save Point and a Drop-Me-Not. Continue to jump up on the ledges wherever you see a ladder, then use the box to jump up to the next platform. Open the chest here for a Balloon. Go back across to the other side, where you should see another a box, and use it to reach the final large platform. Jump across the wheels here, then head right. You should see a horizontal bar; use Flowmotion to grab it and hop off of it to a higher platform. Open the chest for a Dulcet Fragment. Drop back down, and hop on the box in front of another horizontal bar. Again, use Flowmotion to get onto the higher ledge. Head left to find another ledge here, and hop onto it for another Drop-Me-Not. Drop all the way back down, and exit after saving. Walk back past the balcony to the Nave. Defeat the enemies here to help Sora level up a bit, then finally exit the Cathedral.

Town
From the Square, head back toward Town. After the scene, continue moving on to the next area for a new objective. Defeat the large plant-like Dream Eaters to remove the vines from the doors and move on to the next section. This will have to be done three times until progressing to the next area. Beware the poison and the other ferocious Dream Eaters which spawn to aid the "big flower" ones. After defeating the last, Sora's Maximum HP will be increased. Now return back to the entrance of the area where the Save Point and the Moogle Shop are (collecting the Wheeflower Recipe unlocked from defeating one of the Dream Eaters along the way) to begin collecting treasures.

Jump up on the tarp which acts as awning for the produce (as you had to do when fighting against the Dream Eaters earlier) and it will bounce Sora to the roof above. Press   to activate Reality Shift as had to be done in the Cathedral, drawing a line for Sora to glide across the roof in the center. From there, use Reality Shift to round the corner to the northern building, where a treasure chest holds an Ice Dream Cone. Find the bridge between the rooftops using Flowmotion; descend from the rooftop directly north of it for a Confetti Candy. Go back across the bridge and keep progressing past it, over the wall and down the stairs. Drop down here for a Troubling Fancy. Use Flowmotion to get back up the wall and to the stairs, then use Flowmotion again to climb up the tower. In one of the alcoves at the top will be Treasure Goggles.

In the far southwestern corner of the area (by the entrance), you will find a path of rooftops leading off the map. Follow them to find a large chest containing the powerful Sparkra. In the final area before the exit, use Flowmotion to get up a southern wall and find a Lofty Figment. That concludes the treasure hunt for this area. Continue on the trio's journey to find Esmeralda.