Bust the door down to move into a meeting with Amy, who wants help finding Cream. Bust the next door down, floating up the air tube, followed by running down the road to flip the cover off the hole, ...

Move left from the start, meeting Knuckles before hammering a Black Arms foes for his vacuum gun, turning it on the nearby bomb. Move down the road to the left, taking in a bomb, using a bumper below ...