How do you beat the last level of Sonic 2?

Question

I can get past the robotic hedge hog thing with no trouble but the robotnic boss thing after that is impossible

Answer 1

This is a hard boss fight, and it still gives me nightmares. There's really only one way to beat it.

The robot will only do two attacks: it will blast off into the air and then home in on you to squish you, or it will blast its claws at you. When it blasts off into the air, go near one of the edges of the screen. Wait until it's about to come down (the homing marker will start beeping faster) and get out of the way so you don't get smashed. When the robot lands, it will shift slightly forward and expose its belly. This is your ONLY opportunity to hit it. After you score a hit, immediately spindash to the other side of the screen to avoid the claw attack. Rinse and repeat.

The really frustrating thing about this battle is that if you don't hit the robot's stomach just right, you'll go through his body instead of bouncing off. To avoid that, try and put some space between you and the robot when you attack it.