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The Ultimates Successfully land 10 Ultimate Skills during battle. (Excluding Offline Versus and Training mode.)
10/10

Saw It Coming a Mile Away Perform 10 Assemble Counters during battle. (Excluding Offline Versus and Training mode.)
10/10

Wall Breaker Trigger 10 Breaks during battle. (Excluding Offline Versus and Training mode.)
10/10

To the Sky! Successfully land 10 Slam Launchers during battle. (Excluding Offline Versus and Training mode.)
10/10

Avengers, Assemble! Clear the Fighting Avengers scenario in Episode mode.

Smash! Successfully land Assemble Smash 10 times during battle. (Excluding Offline Versus and Training mode.)
10/10

Mashers Unite! Successfully land 100 Link Attacks during battle. (Excluding Offline Versus and Training mode.)
100/100

Sidekick! Perform 100 Assemble Assist attacks during battle. (Excluding Offline Versus and Training mode.)
100/100

It's Showtime Defeat the Promoter in the Episodes.

Super Human Precision Successfully land 10 Super Skills during battle. (Excluding Offline Versus and Training mode.)
10/10

Heart of a Champion Clear any course in All-Star Arena.

Ragnarok Win a game in Arcadia Rumble.

The Prelude to Battle Clear the Startup Battle.

A Painful Blockage Summon five Shades in a single Rivals match.

Carpe D.I.E.M. In Die Maschine, free the lost Decompressive Isotopic Estrangement Machine.

Socket-to-me In Zombies, upgrade a skill.

Heavy Metal In Die Maschine, forge the Pack-A-Punch machine.

Operation Chaos Complete Operation Chaos in Campaign on any difficulty.

Echoes of a Cold War Complete Echoes of a Cold War in Campaign on any difficulty.

Explosive Finish Kill 12 enemies with explosive barrels while riding the server lift during Echoes of a Cold War.

Old Faithful Kill 200 enemies with an AR.

Redlight, Greenlight Complete Redlight, Greenlight in Campaign on any difficulty.

Keep Your Friends Close... Perform Body Shield five times.

Brick in the Wall Complete Brick in the Wall in Campaign on any difficulty.

Fracture Jaw Complete Fracture Jaw in Campaign on any difficulty.

Jack of All Trades Get five kills each with an LMG, SMG, AR, and Shotgun.

Nowhere Left to Run Complete Nowhere Left to Run in Campaign on any difficulty.

Promising Start Complete a Legends Mode story.

Old Skull Destroy 10 Demon Skulls on Hellmark Station

Silence the Scientist Shut N. Brio up

Silent Protagonist Meet 'Akano

Putting Things In Perspective Complete any Timeline

Emerald Gemerald Find the hidden Green Gem

Faster Than a Tortoise Earn any Time Trial Relic

Beaten With His Own Drum Defeat N. Gin and his Weapon of Mass Percussion

Model Test Subject Earn any Flashback Relic

A/V Club Founder Acquire a Flashback Tape

N. Vincible Beat a story level without dying

All Gussied Up Try on a Skin

Reality-Shattering Proportions Meet Lani-Loli

Altitude Sickness Crouch or slide into a double jump

Taking the Side Road Complete a Bonus Path

Channel Surfer Spend some time surfin' the waves

Sky Fortress defeated Destroy the Sky Fortress (available in Easy mode)

Combination Blow Land a 50,000+ point combo.

Summer's Over Unlock School in THPS1 Classic.

Gold Earn a Gold Medal on any chapter.

Weird science Complete Meat Locker on any difficulty.

Crossed the Threshold Complete Mortal Shell.

Felled the Glandfather Defeat The Unchained.