- See also: Guides
- You can get a strong Rank A Yo-kai (reuknight) through fusing some early game yo-kai (Helmsman and Armsman). They can be found in the Old Mansion in Blossom Heights and both love vegetables.
- Snartle, the demon that attacks you for failing to use the crosswalk button, gets stronger the higher your watch rank is. If you plan to catch him, you might consider trying to beat him earlier rather than later. (His favorite food is meat). Alternatively there is a weaker version post-game that you can catch but he's a bit harder to find.
- Draggie, a yo-kai you get near the end of the game, has an ability that lets your entire team gain more experience. If you evolve him he loses this ability and you can't get another until the post-game Infinite Inferno. So if you want to use him for training hold off on evolving him.