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Party of Three Find the hidden companion cube in co-op test chamber

In search of perfection Unlock the 5 levels of an attribute

Arcade Champion Complete Arcade Ladder with All Fighters

The Final Showdown Complete Chapter 7 of Team Adventure Mode.

Coercive diplomacy Kill 300 humans

Offroad Innovation Drive for a mile (1.6 kilometres) on shortcuts in a race and win it in the Porsche 959

Sonic Heroes Complete a Team Race with 2 additional local players on your Team.

These Aren't My Glasses! Complete all Test Your Sight mini-game challenges

The monsters' nightmare Kill 600 monsters

Portal Conservation Society Complete Chamber 3 in the Hard-Light Surfaces co-op course using only 5 total portal placements

A Friend In Speed Is A Friend Indeed Beat a friend's leaderboard time in Time Trial mode on any track.

Waterproof You have passed Glendan's test

Passion Play a women's International football match

Missed coup You prevented the Coin Guard from attempting a coup

Outside the stone prison You have freed Constantin from the claws of Vinbarr

Influence game You have influenced the election to make your favourite become high-king.

Wisp You Were Here Gain 6 positions by using a single Yellow Drill.

En on míl frichtimen You entered the shrine and spoke to En on míl frichtimen

Musketeer Do damage 300 times with shots

Peekaboo Discover all of the soldiers hidden in cardboard boxes.

Something is rotten You have discovered Constantin's actions

Shady Snake Met Snake. He seems dangerous. You get why everybody calls him Snake.

Hunting with hounds Hunt 20 animals

I "Might" Be the Strongest Complete all Test Your Might mini-game challenges

Thélème's chosen Have a good reputation with Thélème

Serve to convince Complete 20 secondary quests

Go Hard Or Go Home Complete all possible events on hard in any Team Adventure Mode chapter.

On The Skids Stay in a single Drift for over a minute.

The art of war Unlock all the warrior skills

Violent Void Use the Violet Void to absorb a projectile and hit the racer who fired it.

Triple Crown Solve 3 co-op chambers in the Mass and Velocity course in under 60 seconds each

Magical perfection Unlock all Magic skills

Incomparable technique Unlock all Technical skills

Moon Shot Bust a racer in the GUMPERT apollo s Interceptor at night, online or offline

Favoured with the Bridge Alliance Have a good reputation with the Bridge Alliance

Hide and Seek Discover and fight Hidden Kombatant 2 in Arcade Ladder

Deceitful Do damage 200 times with traps

Blast Off Complete 5 online races in the GUMPERT apollo s

Humanitarian Assistance Rescue all the civilians.

Twinkle Twinkle Earn every star in Team Adventure Mode Chapter 1.

Friendship above all Finish all companion quests

War mage Do damage 500 times with an offensive spell

Poisoning artist Poison enemies 100 times

Villainy 101 While playing as Eggman, spin out Sonic 3 times in the same Race.

So Far So Jaded Travel 200 meters over slow-down surfaces with a single use of a Jade Ghost.

Hotshot Win an Online and an Offline Interceptor event in the Bugatti Veyron 16.4 Super Sport Interceptor

New gods You have become one of the new deities of the island alongside Constantin

Still Alive Complete Course 4 with neither you nor your co-op partner dying

Shadow blade Use your assassination skills 30 times

Best...Alternate...Ever! Unlock Mileena's 3rd Alternate Costume