Pana Der Hejhog
Although it just has one level, this hack boasts spectacular boss battles, smooth sprites, and shifting weather.
Sonic Boom
Launch Sonic out of a cannon to collect rings. You can buy other friends like Amy, Shadow, Cream, or Mecha Sonic.
Final Fantasy Sonic X1
A new adventure awaits Sonic. He is woken up by Amy Rose only to find Shadow in the street and so it begins...
Metal Sonic 2
There are three alternative play styles available for Metal Sonic, who takes the place of Sonic as a playable character.
Sonic Advance
This Sonic game for the GBA pits Sonic against Dr. Eggman as the latter tries to turn all of the world's animals into robots. It was the first Sonic game ever officially released on a Nintendo system.
Sonic Dots
Collect the dots with Sonic but avoid the Eggman clones. This flash game is just like Pacman!