I was going to give it a 3 but Robotnik moving an identical rock (By hand! Which means he's much stronger than Sonic and Tails put together since they couldn't budge the one at the bottom) to plug the top of the tunnel made me upgrade it to a 4. That's the problem with the Sonic franchise, if all else was equal, I would totally root for Robotnik. Then again, it would be kind of hard to make a game where you play Robotnik, it would involve designing robots to defeat the mutant animals that come at your genius with brute force. Then again, that's kind of why it's also hard not to root for Lex Luthor IMHO.