Let's Play Sonic 3 & Knuckles Part 9 {Sonic,Final Boss and Credits}
4Final boss of the game at the Doomsday Zone! You can only access this fight if you got all the Chaos/Super Emeralds. Dr.Robotnik/Eggman tries to make a last ditch attempt to escape with the Master Emerald,and you'll have to chase him down in Super/Hyper form. Use the first segment to collect as many rings as possible,around 70-90 would be good. Hitting asteroids or missiles slows Sonic down for the record. When you reach Robotnik,you'll have to fly to the front and wait for him to fire Missiles at you. Lure the missiles into the head of the robot to damage it,which is easier said than down with the turrets firing at you and all. After 8 hits,Robotnik escapes in yet another robot! Chase him down,and make sure to hit the A Button to make Sonic dash forward to catch up. Don't make him fly into the jets,and also try to dodge his attacks or you'll be sent flying backwards. 8 more hits on this form,and Robotnik will be beaten for good! Now you get to see the full ending for Sonic 3 & Knuckles. I'll be starting a run through the game with Knuckles next.