Note: Due to the nature of The City, many of these chests can be difficult to find. Use the minimap on the screenshots to help find your way to the chests.
Treasure #1 - Aegis Chain
Head to the central section of The City and make your way up the circular building to the east. You’ll find this chest by the pillar supporting the top platform.
Treasure #2 - Skill Ring+
Head to the square building to the southeast of The City and run up the south side of the building. You’ll find a gap in between two sections of the building with the chest sitting in between.
Treasure #3 - Map: The City
Upon entering San Fransokyo and making your way to the city for the first time, look to your left to spot the chest.
Treasure #4 - Hi-Refocuser
Head to the western exit located in the center of the map and look under the road leading to the highway.
Treasure #5 - AP Boost
Make your way to the northern district and head to the residential area, at the end of the path are boxes, look behind them to find the chest.
Treasure #6 - Electrum
Head to the northeast of The City and follow the tracks down to the south, on the first building you come to will be a chest close to the tracks themself.
Treasure #7 - Phantom Ring
Head to the row of buildings to the southwest and you’ll find this chest in the doorway.
Treasure #8 - AP Boost
Head along the western edge of the map and you’ll come across two exits to the west. Head to the roof of the building in the middle of these two exits and look in the middle of two air conditioning units.
Treasure #9 - Mega-Ether
Head to the position on the image, found in the center of The City. You’ll find the chest on the northern edge of the building.
Treasure #10 - Adamantite
Head to the railway tunnel found in the northeast and search around the wall to the south of the building.
Treasures #11, #12 and #18 - Mega-Potion, Thundaga Trinket, Mega-Ether
Head to the western exit and climb the rooftop with the circular billboards nearby. At the top, you’ll find all three chests around the pylon.
Treasure #13 - Elixir
Head to the northwest of The City and search under the railway, the chest sits next to a vending machine.
Treasure #14 - Storm Fan
Head along the rooftops north of the previous chest to find this one sitting on top.
Treasure #15 - AP Boost
Head along the rooftops in the northwest part of The City and search behind an air conditioning unit of the eastern house.
Treasure #16 - Magic Boost
Head along the row of houses in the northwest part of The City and you’ll find this chest on a concrete awning along the western side of the street.
Treasure #17 - Hi-Ether
Head between the two western exits in the central part of The City and climb the eastern row of buildings. Drop down to the northern side of this building to find the chest.
Treasure #19 - Nirvana+
Climb to the top of the northeast building on the map, the chest sits right at the very top.
Treasure #20 - AP Boost
Head to where the exit is in the southwest part of The City and then follow the southern edge to come across this chest.
Treasure #21 - Damascus
Go to the southwest side of The City and make your way to the second building on the west, the chest sits on the ground of the south side.
Treasure #22 - Adamantite
Head to the parking lot found in the northeast side of The City and search behind the advertising boards.
Treasure #23 - Divine Bandanna
Head to the building in the center of the The City and search the south side to find this chest between two vending machines.
Treasure #24 - Hi-Refocuser
Climb the northern side of the previous building to find this chest behind a billboard.
Treasure #25 - Star Charm
Head to the western exit in the central part of The City and climb the support pillar from the ground, the chest sits on the corner of this.
Treasure #26 - Electrum
Head to the two rows of buildings in the middle of the two western exits and drop down in the middle of them, the chest is in an alcove here.
Treasure #27 - Buster Band
Go to the Southwest side of The City and begin climbing the chef statue, you’ll find the chest on the first platform as you make your way up.
Treasure #28 - Magic Boost
Head to the railway tunnel entrance in the northeast of The City and run up the wall of the western entrance. You’ll reach a small ledge here with the chest on it.
Treasure #29 - Strength Boost
Go to the row of houses in the northwest and head into the alley, you’ll find a pallet of boxes you can leap over.
Treasure #30 - Midnight Anklet
Climb the large circular building to the northeast and search by the pillar supporting the top platform.
Treasure #31 - Mega-Potion
Climb the buildings to the southwest and look behind the large billboards to discover this chest.
Treasure #32 - Damascus
Go to the row of houses in the northwest and head into the alley, you’ll find the chest sitting at the end of the path against the wall.
Treasure #33 - AP Boost
Head to the railway tunnel entrance in the northeast of The City and run up the wall of the western entrance. Keep running up this building and you’ll find a small ledge just before the roof with this chest on it.
Treasure #34 - Classic Kingdom: Mickey’s Mechanical Man
Head to the row of buildings in the middle of the two western exits and climb to the roofs of the western row. You’ll find a helipad on the northern roof housing the chest.
Treasure #35 - Classic Kingdom: How to Play Baseball
Go to the southwest of The City and head to the rooftop of the second western building (starting from the southern most building), the chest sits on the north side.
Treasure #36 - Classic Kingdom: Mickey Steps Out
Head under the highway in the central part of The City and continue until you find an advertising board on it’s own. Run up the building to the side of it and leap off to strike it, revealing the chest in the process.