The city is wrecked by Dr. Wily's robots. This stage is simple, from the start, head right, defeating the Mets and the Bunby Tanks until you get to the robot that destroyed the city in the intro, a giant steamroller robot named the Mad Grinder. This guy looks imposing, but he's really easy. Avoid his boomerang blade, jump when he slams the ground, and keep hitting him in the head with Charge Shots until he's defeated. After he's defeated, head right, past the wreckage of Bunby Tanks, Foot Holders, and Mets until you get your first fight with Bass. He's really easy. He just shoots at you, and sometimes jumps. Hit him until he talks a bit, then teleports out.