Here are my score and rankings in the mini games for Odyssey:
Some of these games were hell. If you know, you know.
The jump rope, volleyball and rc car challenges were so fcking frustrating omfg. They took me forever. The Iceburn circuit was pretty up there too.
As for the Koopa free running the only ones I found hard on some level were the ones in the Cascade, Lake, and Lost Kingdom from what I recall. The other ones were pretty easy once I saw the path all the Koopas took or I just found the quickest path myself. Lol
I was just so glad when I finally got the power moons for passing them. Definitley some of the hardest power moons to get in the game @-@