Honestly, I do NOT want Super forms for all characters in SP/Coop
Let's be honest; Sonic is the hardest character to use. Tails and Knux have it easy, and the special Stages are a PRIME example of this. So why not give the hardest character to use a good reward? Super sonic isn't even better than Tails and Knux; they still have flight/gliding, and they can use their abilities WITHOUT DRAINING RINGS, and while SS is invincible, the Glide doesn't help muchsometimes due to lack of a vertical height increase, and the need to keep your momentum up, while Knux and Tails can STILL skip gigantic chunks of level with no effort. Sonic just NEEDS Super Sonic to give people a reason to use him in SP/Coop, and make him more special and somewhat as capable as Tails and Knux. Tails and Knux have their level spoiling abilities; let someone who MUST know how to use Sonic well enough to beat SS7 have their unique power.