The dark hunter: Sonic

It's Robot who starts everything when he did a mistake in a scientific experience and Cream got hurt in it. So Dark sonic have to repair this situation.
He has to reach the end of every level and to finish it all. In the end of every part he has to beat the beast and to attain the beautiful Cream
Dark sonic is concerned to win super powers and to collect the maximum amount of coins, he has to success the levels with a good rating.
Dark Sonic is good at speed, he has to pass by a lot of plans as: the sahara, the city, the savana...
So how would he do it without you ??