The gameplay was conceived to be an innovative side-scrolling platformer. Whereas a hedgehog was not the fastest animal on earth, the hedgehog of AM8 would be the quickest video game character ever. It was called Sonic, an adjective for explaining how to hit the sound level, to make the name more in line with the character and speed idea. Hedgehog Sonic has been born. You can download Sonic Coloring Book Characters