Sonic The Hedgehog: Eggstreme

Sonic The Hedgehog: Eggstreme is a Sonic fangame created by SonikkuGames. Set on North Island, the most northern island on the planet of Mobius, Sonic The Hedgehog, along with Miles "Tails" Prower, Knuckles The Echidna, Amy Rose, Cream The Rabbit, Shadow The Hedgehog, Rouge The Bat, Mighty The Armadillo, Vector The Crocodile, and Blaze The Cat, work together to travel through the new island and to stop Dr. Eggman from taking over the Island, who is now accompanied by his adoptive daughter, Eggette.

Sonic Eggstreme was developed using the program, Clickteam Fusion 2.5, specifically the Not So Simple Sonic Worlds Engine Plus. It was inspired mostly by the Classic Sonic The Hedgehog games, while having elements from the later games in the series.

Plot
On a mission to find out his next plans for world domination, Dr. Eggman finds a little girl alone and abandoned by her parents. When he reaches down, his Eggpod begins to malfunction, and he kicks the pod in frustration. The little girl offers to help the evil genius, and by finding her knack for mechanics, she decides to use her for his evil schemes. Eggman takes Eggette under his wing, and teaches her how to create badniks and a distinct hatred for his archnemesis. With an updated version of Metal Sonic, and an army of badniks under way, nothing can stop them from stopping North Island now!

Under a distress signal from Shadow and Rouge, the Freedom Fighters all join in and learn about Dr. Eggman's plans.