| Achievement | How to unlock
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| A Pretty Amazing Person | Defeat an opponent with a higher rating than you five times in online mode.
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| A Worthy Opponent | Defeat a level nine NPC in a level battle.
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| ACTIVATE THE PLOT DEVICE! | Clear Arcade with fifteen brawlers.
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| Astonishing! | Clear Arcade with five brawlers.
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| Avatar State | Complete an Arcade run without losing a single stock.
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| Better than the Turkey Jerkies! | In Sports, win a game with basketball vs CPUs with a ten score lead.
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| COWABUNGA! | Clear Arcade with ten brawlers.
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| Dog the Mighty! | Defeat two level nine NPCs in a team-battle where you are alone on your team.
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| Everything is Connected | Clear Arcade with all (standard) brawlers.
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| Flawless Hair, Check! | Defeat an opponent without losing a single stock in an online battle.
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| GO NINJA GO!!! | Play fifty local battles.
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| Getting to Know the Family | Play at least once with all standard brawlers in local battle.
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| Going Ghost! | In Sports, win a game with dodgeball vs CPUs with a ten score lead.
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| I Only Know How to Give 110% | Compete in ten local battles.
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| I Want an Award! | Compete in your first local battle.
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| I'm Ready! I'm Ready! | Complete an online quickplay match.
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| King of Sportz | In Sports, win a game with soccer ball vs CPUs with a ten score lead.
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| Move it, Football Head! | In Sports, win a game with rugby ball vs CPUs with a ten score lead.
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| Rise and Shine | Clear Arcade with one brawler.
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| Smashing! | In Sports, win a game with medic ball vs CPUs with a ten score lead.
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| Time to Scare the Opposition | Complete ten online quickplay matches.
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| Ultimate Tool of Destruction | Complete an Arcade run on the highest difficulty.
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| Unleash the DOOM! | Defeat three level nine NPCs in a team-battle.
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| World Domination is at Hand! | Complete fifty online quickplay matches.
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