You cleared Chapter 1.

Got S rank in The Agitated Five Kage Summit.

Used rear attack feature in a mob battle.

You cleared the prologue.

Got A rank or higher in The Nine Tails' Attack.

Successfully performed a Secret Action.

Won a battle without suffering any costume damage.

Sign an agreement with the Type III General-Purpose AI Equipped With Total Sequential Integration.

Enter a Hollow for the first time.

Successfully use all three Turbo Boost charges 5 times in a row during a race.

Win a race with less than 0.3 seconds between you and the second place.

Earn all the Relics in the Adventure Mode.