Rijamita

Cleared Sonic the Hedgehog 2 Clear Sonic the Hedgehog 2 in either Anniversary or Classic Mode

I shall not waver! Play 300 [ranked matches / player matches]

Change the Channel Destroy the Prototype Stealth U-Boat hidden in Festung Guernsey.

Snake in the Grass While in Tall Grass, kill 50 soldiers.
50/50

Lord of War Get a kill with 20 different weapons.
20/20

Lucky Hedgehog Get the jackpot in Sonic the Hedgehog 2's Casino Night Zone

Super Sonic Turn into Super Sonic

Cleared Sonic CD Clear Sonic CD in either Anniversary or Classic Mode

Shut Down Metal Sonic Win a race against Metal Sonic in Sonic CD

To the Mirror World Play Mirror Mode

Boss Rush Attempt Try the Boss Rush from any of the titles

It's Starting to Crack Destroy Operation Kraken's production facility at Martressac.

Locomotion Commotion In Martressac, create an accident that destroys the train in the storage area.

Speed Master Win all the events in a Speedlist

Hard Tryer Complete Popit Academy Term 1

Freshman Creator Ace Popit Academy Term 1

Official Groupie Give in to your inner completionist

Disk Jockey Make vinyls cool again. ...Actually, that's impossible, even as a joke. Just find all the gramophones.

Full Closet Fill out your wardrobe

You've Got A Problem, Man Collect every single crow skull in the world

Skull Aficionado Collect all crow skulls in Skeletown

Skull Hobbyist Find all crow skulls in the ancient mines

The Baddest Bad Guy Kill the Wizard + Get the Amulet = Profit

Skull Obsessive Collect all crow skulls in the North

You'll Float, Too Reach the end of the vortex like a paper boat down a drain

The Worst Achievement Possible Get on Santa's Super-Duper-Duper-Naughty List

Hunger Killer Solve world hunger (by killing Gluttony)

Skull Fanatic Collect all crow skulls in the graveyard

Ain't no rest for the wicked Clear away all those headstones cluttering up the graveyard

High Flyer Go for a nice walk with Abelard the Gargoyle

The Bigger They Are... Be the David to Dhor's Goliath (i.e. kill the big guy)

Formula Ugh Beat the gate guards to the gate they guard on guard carts

Whack-a-Mole Win the game of Conveniently-Placed Hydraulic-Operated Underground Whack-a-Mole (patent pending)

Cruel Tea Ruin the Witch and Merchant's cruelty-free dinner

Skull Collector Collect all crow skulls in the swamp

Ghost Rider Ride the ghost horse all the way to the end

De-Composer Make some magic mushroom music!

Ghostbuster Kill the Phantom guarding the ancient mines

License to Drive Pass your abandoned minecart driving test

Bomberman Complete all the underground bomb-bouncing courses

Curse of the Scarecrow Kill the tyrannical Scarecrow and liberate the crows

Skull Finder Collect all crow skulls in the fields

Crash Boo-ndicoot Smashing some crates with your head might solve the barn's puzzle..

Fashion Victim Buy a new outfit!

Skull Breaker Send a monster back to the grave

Shovel Face Equip the Legendary Holy Glory Shovel

Boogie-Man Wonderland Find a gramophone and DANCE, DANCE, DANCE!

Brand New Body Finish the tutorial

Prying Eyes Pick up a crow skull

Mecho Historian Accomplish everything.