retro achievement for Sonic Chaos

Blue Skies and Green Meadows

Robotnik's Fantasy Island

Ecological Disaster

Interdimensional Travel

Gem of Miracles

Where's my Special Stage?

Chaos Tower Climb

Wrong Turn at Albuquerque

Turquoise Hill Explorer - Act 1

Turquoise Hill Explorer - Act 2

Fully Prepared - Turquoise Hill

Gigalopolis Explorer - Act 1

Gigalopolis Explorer - Act 2

Fully Prepared - Gigalopolis

Sleeping Egg Explorer - Act 1

Sleeping Egg Explorer - Act 2

Fully Prepared - Sleeping Egg

Mecha Green Hill Explorer - Act 1

Mecha Green Hill Explorer - Act 2

Fully Prepared - Mecha Green Hill

Aqua Planet Explorer - Act 1

Aqua Planet Explorer - Act 2

Fully Prepared - Aqua Planet

Fully Prepared - Electric Egg

Firmly Grounded

Tree Climber

Bested the Tracked Bug

Bested the Bug-On-A-Stick

Turquoise Speedrun - Act 1

Turquoise Speedrun - Act 2

Turquoise Speedrun - Act 3

Gigalopolis Speedrun - Act 1

Gigalopolis Speedrun - Act 2

Sleeping Speedrun - Act 1

Sleeping Speedrun - Act 2

Mecha Speedrun - Act 1

Mecha Speedrun - Act 2

Mecha Speedrun - Act 3

Aqua Speedrun - Act 1

Aqua Speedrun - Act 2

Electric Speedrun - Act 1

Electric Speedrun - Act 2

Taking Off to the Skies

The Fastest Thing Alive

Can't Touch This

Amateur Score

Expert Score

Sonic Boom!

Sonic Whimper...

Catch you on the flip side

Cha-ching!

Self-Portrait

Hadouken!!

Technological Terror

Blue Blur Hero

Two-Tailed Hero

Ready to Face Robotnik

Speedy Emerald Collector

Like Diamonds in the Sky

Rocket Enthusiast

Time Freeze Expert

Electric Egg Explorer - Act 1

Electric Egg Explorer - Act 2

Doesn't Like to Take Baths

Cracked Egg

Bounce King

Bested the Robo-Snake

Bested the Pogo-Powered Robotnik

Bested the Egg with the Deadly Centre

Gigalopolis Speedrun - Act 3

Sleeping Speedrun - Act 3

Aqua Speedrun - Act 3

Electric Speedrun - Act 3

Baker's Dozen

Cat's Luck

Top Score

BFFs

Savior of South Island

Bested Dr. Robotnik

Immortal Hero