Clear Chapter 1, "The Prince and the Part-Timer"

Clear Chapter 3, "Inspector Fortran: Case Closed"

Clear Chapter 5, "False Friends"

Clear Chapter 7, "The Frozen Paths We Walk"

Clear Chapter 9, "Onward, to Our Dreams!"

Become besties with Oak.

Become besties with Kotori.

Become besties with Mel.

Become besties with Mana.

Become besties with Philip.

Become besties with Cobol.

Become besties with Chip.

Become besties with Leda.

Become besties with Cee.

Become besties with Vhoebe.

Purchase all types of merch from the Item Shop.

Purchase all types of merch from the Plushie Emporium.

Use every type of comic.

Use every type of hammer.

Use every type of staff.

Complete the MonDex.

Collect all plushies.

Become besties with Apple.

Become besties with Cherry.