Dragon Quest 8: Journey of the Cursed King

Unlock Bardiche of Binding               - get Rank B in Monster Arena
Unlock Bunny Suit                        - get Rank F in Monster Arena
Unlock Dragon Robe                       - get Rank S in Monster Arena
Unlock Hero Spear                        - get Rank A in Monster Arena
Unlock Ring of Clarity                   - get Rank E in Monster Arena
Unlock Strength Ring                     - get Rank G in Monster Arena
Unlock Hero Statue                       - get Rank S in Monster Arena
Unlock option to fight against your team - get Rank F in Monster Arena
Unlock three additional reserve monster slot - get Rank D or G in Monster Arena
Unlock Rank S                            - get Rank A in Monster Arena
Unlock Second Monster Team               - get Rank B in Monster Arena
Unlock No Entry Fees                     - get Rank S in Monster Arena
Unlock call team ability for hero        - get Rank E in Monster Arena
Unlock Saint's Ashes                     - get Rank C in Monster Arena
Unlock Mighty Armlet                     - get Rank D in Monster Arena

 