Here is the full list of all 17 FINAL MATCH achievements.
Win One Match For First Time
Defeat Armored Knight
Defeat The Warrior
Defeat Black Knight
Defeat The Deadly Warrior
Defeat Dragonier
Defeat The Veteran
Defeat Ancient Dragon
Defeat The Old Warrior
Play 10 matches in online mode
Get 500 XP in one match
Get Level 10
Defeat Nrisca!
Defeat The Thief
Defeat Leader Of War
Defeat Destroyer
Defeat Darkestbeast