civic halo
during the tutorial you're lead by a "diabolical ironclad beetle" that can also double as a dummy for headbutts and specials (bc its ironclad😉 ) it shows you examples of crawling, jumping, and all the necessary movements. the beetle itself is an NPC that has a set path and checkpoints so it knows when the player has moved from one area to the next. during the end you could give it some rudimentary goalie AI (mirroring movements in front of a goal or smth) and it can show you why it has Diabolical in its name 👹
it could walk you through the classes and have little displays of their ultimate's.
I'm thinkin like Doc Hudson from cars retired GOAT and has the trophies and experience to prove it. it could have like the typical old man groan whenever it has dialogue. he's old but not old in the "i need a cane and walk at a snails pace" sense but a "Doctor said if i played another match i might never be able to walk again" old
The ironclad beetle could pop up during loading screens to give bug facts or remind players of basic movement/tecs
gloomy jackal
errant prism
hard aspen