With some help I've figured out the minimum amount of captures to get all 80 Moons is 14 captures

• 1 for goomba stack moon in Sand Kingdom
• 1 to capture a bullet bill to break the cage in Sand Kingdom
• 3 to capture the hand 3 times to defeat the Sand Kingdom Boss
• 1 to capture the tank in Wooded Kingdom to shoot the targets
• 3 to capture 3 thwomps to kill bowser in Bowsers Kingdom
• 1 for goomba stack moon in DARK Sand Kingdom
• 3 to capture the hand 3 times to defeat the DARK Sand Kingdom Boss
• 1 to capture the tank in DARK Wooded Kingdom to shoot the targets Scarecrows DO NOT count as captures cause you don't transform into them.

With all this said, is it possible to create a minimum captures category where you get all 80 moons in only 14 captures?