Clear the Prologue
Open a treasure chest.
Trap a foe in a Bear Trap.
Clear Chapter 4.
Buy something at a shop.
Watch a bonding scene.
Clear Chapter 9.
Clear Chapter 12 after opening one of the chests.
Clear Chapter 13.
Clear Chapter 16.
Clear Chapter 18.
Clear Chapter 19.
Clear the final chapter.
Clear the extra chapter (Hard mode).
Get Gritz and Leah's bond to Rank A.
Get a Game Over.
Earn all the achievements.