Unlock Bonuses
Bad Results Image - Complete an objective from the same story book 3 times.
Bad Progress - Complete an objective from the same story book 5 times.
BMG - complete an objective from the same story book 6 times.
Good Progress - Complete an objective from the same story book 4 times.
Game Background, and playability in Challenge and Versus modes - Complete a story books objective for the first time.
Good Results Image - Complete an objective from the same story book twice.
Unlock Difficulties
Expert mode - Take every route and beat all levels in Hard mode with a bronze or better medal.
Hard mode - Take every route and beat all levels in Normal mode with a bronze or better medal.