This is one of the largest games on the KNP Korner (in both literal filesize and play length), so much so that I'm at a loss for words!  Fortunately, the author is here to help your breathless DJ:

"You can play as Sonic, Shadow and Silver as the main characters, and Tails, Knuckles, Amy, Blaze, Rouge and Omega will help you in the levels!

You can play Sonic, Shadow and Silver´s story and the LAST STORY with Super Sonic, Super Shadow and Super Silver."

"It has a multiplayer mode: battle and race.
And a hard mode too!
You can collect silver and gold medals in the levels, in the fights, by finishing all the stories, or in hard mode.
It has a music section, where you can hear music of the game!"

Thanks a lot, STHE123OKNP!  I couldn't have said it better myself.

Developed by STHE123OKNP.

Click here to download Sonic the Hedgehog Klik & Play Version!