Sonic Dots Game
Sonic dots is a pacman-style flash game. You play as just Sonic the Hedgehog's dome. I am not sure what happened to his body but his dome can do some serious damage eating the dots. If you run into the Eggman clones, you will lose a life but remember that the green emeralds will make you invincible/big and you'll be able to eat the Eggmen while in this state.