Like in Wii Play, medals that I've researched/done for my run: (it's been a while and i do have a few holes, so please help XD)

Medals%

Cone Zone 20 40 60 80

Veggie Guardian 2500

Pose Mii

Skip Skimmer 180

Trigger Twist UFO Ninja Dinosaur All Stages > 25k

Jump Park Gem Hunt 30 50 1:30 1:30

Spooky Search 1 2 3

Wind Runner 1 2 3 3 > 200

Treasure Twirl 1 2 3 4

Flutter Fly 844 902 919 918

Teeter Targets 30

Star Shuttle 30