A (purely conceptual as of now) Sonic the Hedgehog fangame, where one must work in groups of two characters to traverse dynamic landscapes.

The current list goes as follows:

Seasonal Summit - Summer, Autumn and Winter themed level. Act 1 Mid-Day, Act 2 Sunset, and Act 3 (Boss) Night.

Bumper Base - An Eggman factory, specifically for producing bumpers and springs.

Cryptopolis - A flooded, abandoned city.

Lost Lagoon - A decrepit underwater ruin.

Fright Forest - A dense, haunted forest. Act 1 is a forest, act 2 is a haunted mansion.

Rocky Range - A desert canyon level. Act 2 is burning heat! Take cover!

Ashen Airship - A fire-filled airship. Take care not to get toasted!

(TBD) - (TBD)

Sonic the Hedgehog: The world's fastest hedgehog! Can spindash, dropdash, and super peel out.

Miles "Tails" Prower: A young technician and engineer with an I.Q of 300, Tails can fly to the highest heights, carry his partner around, and also spindash.

Knuckles the Echidna: Knuckles, the Guardian of the Master Emerald, can glide across the sky, climb walls to find secret goodies, and spindash.

Shadow the Hedgehog: The Ultimate Lifeform, controls the same as Sonic, but instead of dropdash, he has Chaos Control, allowing him to stop in place and teleport a short burst forward in any direction when the jump button is held after jumping.

Amy Rose: Sonic's 1# fan, Amy Rose, uses her Piko-Piko Hammer to attack badniks, jump higher, and spin and glide across the ground and sky.

Metal Sonic: The REAL Sonic (from a certain point of view) uses his thrusters to float along the ground. When maintaining speed for approximately 5 seconds, Metal will damage any badniks or breakable objects in his path, and move even faster. This stays active until he slows down or takes damage. He can also hover. If staying still or moving slowly, he will slowly fall to the ground.

Doctor Eggman: Sonic and friends' arch nemesis, Dr. Robotnik, the greatest scientific genius in the world! Welcome to the new world, Eggman Empire!