During the Main Story, Mario and Cappy will have to find Power Moons in order to power up the Odyssey to travel from kingdom to kingdom. After the Main Story is completed, Mario can find and obtain additional Power Moons in order to unlock new Kingdoms and Costumes. In Bowser Kingdom, there are 45 Power Moons that Mario can find during the Main Story. Some of these Power Moons will not be able to be found and obtained when first entering the kingdom; some Power Moons can only be obtained (even if listed below) after the main objectives have been completed in Bowser Kingdom. (Even more will appear after the Main Story is completed.)
Bowser Kingdom Power Moons & Mission Titles (Main Story)
Bowser's Kingdom Power Moon 01 - Infiltrate Bowser's Castle
Bowser's Kingdom Power Moon 02 - Smart Bombing
Bowser's Kingdom Power Moon 03 - Big Broodal Battle
Bowser's Kingdom Power Moon 04 - Showdown at Bowser's Castle
Bowser's Kingdom Power Moon 05 - Behind the Big Wall
Bowser's Kingdom Power Moon 06 - Treasure Inside the Turret
Bowser's Kingdom Power Moon 07 - From the Side Above the Castle Gate
Bowser's Kingdom Power Moon 08 - Sunken Treasure in the Moat
Bowser's Kingdom Power Moon 09 - Past the Moving Wall
Bowser's Kingdom Power Moon 10 - Above the Poison Swamp
Bowser's Kingdom Power Moon 11 - Knocking Down the Nice Frame
Bowser's Kingdom Power Moon 12 - Caught on the Iron Fence
Bowser's Kingdom Power Moon 13 - On the Giant Bowser Statue's Nose
Bowser's Kingdom Power Moon 14 - Inside a Block in the Castle
Bowser's Kingdom Power Moon 15 - Caught Hopping at Bowser's Castle!
Bowser's Kingdom Power Moon 16 - Exterminate the Ogres!
Bowser's Kingdom Power Moon 17 - Bowser's Kingdom Timer Challenge 1
Bowser's Kingdom Power Moon 18 - Taking Notes: Between Spinines
Bowser's Kingdom Power Moon 19 - Stack Up Above the Wall
Bowser's Kingdom Power Moon 20 - Hidden Corridor Under the Floor
Bowser's Kingdom Power Moon 21 - Poking Your Nose in the Plaster Wall
Bowser's Kingdom Power Moon 22 - Poking the Turret Wall
Bowser's Kingdom Power Moon 23 - Poking Your Nose by the Great Gate
Bowser's Kingdom Power Moon 24 - Jizo All in a Row
Bowser's Kingdom Power Moon 25 - Underground Jizo
Bowser's Kingdom Power Moon 26 - Found Behind Bars!
Bowser's Kingdom Power Moon 27 - Fishing(?) in Bowser's Castle
Bowser's Kingdom Power Moon 28 - Good to See You, Captain Toad!
Bowser's Kingdom Power Moon 29 - Shopping at Bowser's Castle
Bowser's Kingdom Power Moon 30 - Bowser's Castle Treasure Vault
Bowser's Kingdom Power Moon 31 - Scene of Crossing the Poison Swamp
Bowser's Kingdom Power Moon 32 - Taking Notes: In the Folding Screen
Bowser's Kingdom Power Moon 33 - On Top of the Spinning Tower
Bowser's Kingdom Power Moon 34 - Down and Up the Spinning Tower
Bowser's Kingdom Power Moon 35 - Jizo's Big Adventure
Bowser's Kingdom Power Moon 36 - Jizo and the Hidden Room
Bowser's Kingdom Power Moon 37 - Dashing Above the Clouds
Bowser's Kingdom Power Moon 38 - Dashing Through the Clouds
Bowser's Kingdom Power Moon 39 - Sphynx Over Bowser's Castle
Bowser's Kingdom Power Moon 40 - I Met a Pokio!
Bowser's Kingdom Power Moon 41 - Bowser's Kingdom Regular Cup
Bowser's Kingdom Power Moon 42 - A Rumble Under the Arena FLoor
Bowser's Kingdom Power Moon 43 - Secret Path to Bowser's Castle
Bowser's Kingdom Power Moon 44 - Peach In Bowser Kingdom
Bowser's Kingdom Power Moon 45 - Found with Bowser's Kingdom Art
Additionally, there will be 17 Post Game Power Moons that can be found and obtained in Bowser Kingdom.