- Jump Economy
Finish a stage and jump fewer than 10 times. (King Knight)
Locked
- Heartless
Finish a Joustus Judge stage without dying or collecting any food or health hearts. (King Knight)
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- Gem Sweep
In a Joustus match with more than one gem, win by claiming every gem. (King Knight)
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- Smack Back
As Shovel Knight, win the match with a reflected projectile. (Showdown)
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- Destruction Dominoes
As Plague Knight, defeat multiple foes by hurtling through them with a single Spin Burst. (Showdown)
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- Dark Dunk
As Specter Knight, use a Dash Slash to win by dunking a foe into lava or a pit that you would've fallen into. (Showdown)
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- Fancy Feet
As King Knight, reach the winning gem while still spinning after bashing into a foe. (Showdown)
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- Stay Where You Are!
As Shield Knight, use a single Shield Rush to both block a projectile and win the match. (Showdown)
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- From Shadow!
As Black Knight, win the match by dodging a player and hitting them with a Dark Wave. (Showdown)
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- Aerial Ace
As Propeller Knight, defeat 2 or more foes without touching the ground. (Showdown)
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- Undermined
- Chain Reaction
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- Plower Power
As Polar Knight, defeat multiple foes with a single use of the Polar Plow. (Showdown)
Locked
- Whoops!
Locked
- Hover Queenie
Locked
- The Storm Is Coming!
Locked
- Reize for the Sky
Locked
- Hat Trick
Locked
- Shrouded Strike
Locked
- Elementary!
Locked
- From Nowhere
- Hops and Dreams
Locked
- Liquid Assets
Locked
- Done In One
Finish Story Mode without using a continue. (Showdown)
Locked
- Percy's Pal
Attain a score of 100,000 in Targets. (Showdown)
Locked
- Sure-Footed
Finish 10 matches in any stage with lava or a pit without falling in. (Showdown)
- Item Lord
Use each of the items once. (Showdown)
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- Order of Thwarters
Successfully parry 10 times during one match. (Showdown)
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- Warp Walker
Fall through the warp floor 50 times. (Showdown)
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- Shatterer
Complete Story Mode on Hard difficulty. (Showdown)
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- Magma Day
Knock opponents into lava 50 times. (Showdown)
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- Troupple Tango
Defeat 50 Troupples during an encounter with the Troupple King. (Showdown)
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- Eliminator
KO 100 total opponents. (Showdown)
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- Stomped!
Win a stock match of 3 or more without losing a single stock. (Showdown)
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- Clutch!
Win Sudden Death 5 times. (Showdown)
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- Chester's Chum
See 20 different modes in Chester's Choice. (Showdown)
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- Victory!
Finish the game. (Plague Knight)
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- Mint Condition
Collect all Cipher Coins. (Plague Knight)
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- Maxed Out
Purchase or unlock all relics equipment and upgrades. (Plague Knight)
Locked
- Again!
Finish New Game Plus. (Plague Knight)
Locked
- Hall Villain
Clear the the Hall of Champions in 3 minutes and 30 seconds or less. (Plague Knight)
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- No Damage!
Finish any Stage without taking damage. (Plague Knight)
Locked
- Penny Pincher
Finish the game without spending any money... including Cipher Coins! (Plague Knight)
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- Naked Plague
Finish the game without collecting any arcana, bomb parts, or armors. (Plague Knight)
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- Hurry Up!
Beat the game within 1 hour and 30 minutes. (Plague Knight)
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- Checkpointless
Destroy every possible checkpoint in the game. (Plague Knight)
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- Untouched
Emerge unscathed from a battle with any Knight of the Order of No Quarter... except for King Knight! (Plague Knight)
Locked
- Defend the Lab!
Retake the Explodatorium without breaking any grey blocks during the boss fight. (Plague Knight)
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- Trading Up
Trade each of the useless relics to Chester. (Plague Knight)
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- Hang Time
Stay in the air for 10 seconds without landing on anything. (Plague Knight)
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- Bomb Jump Blitz
Defeat an Order Knight using only bomb jump explosions. (Plague Knight)
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- Poor Oolong
Give Oolong a sample of every explosion. (Plague Knight)
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- Bomb Economy
Finish any order of no quarter stage using 15 bombs or fewer. (Plague Knight)
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- Creep
Watch all of Mona's dance. (Plague Knight)
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- Teetotaler
Finish the game without drinking any tonics. (Plague Knight)
Locked
- Get Out Of My Room!
Find Plague Knight's secret room. (Plague Knight)
Locked