Complete certain in-game tasks to get each achievement.
Chikara is Lost (10) - Story Mode Chapter 1 is cleared.
Necklace of Cannon - Clear chapter 4 of story mode.
Promise With the Cannon - Clear chapter 2 of story mode.
Proof of Friendship - Clear chapter 3 of story mode.
Silver Medal - Reach 100 victories.
Toradeishiyona (30) - Have 500 total wins and losses.