Contra III: The Alien Wars/Stage 5: Mucho Grande Badlands

The Mucho Grande Badlands stage is similar to stage 2 but quite a bit harder. Choose an area of the stage and get going. Be careful here since you can fall off the side pretty easily and the spinners near several of the bases can be disorienting. Press or  to counteract the force of the spinning, depending on which direction they are going. After you destroy all of the bases, you'll face the boss.


 * The Round Ball of Death (Scorpabellum): This thing is one of the hardest bosses in the game. The circular area around the boss will rotate like the spinners on the stage. Press or  to stop the spinning. If you're playing on hard, the spinning will be very fast and you won't be able to counteract it completely but enough to avoid spinning out of control and dying. The boss has two attacks of its own, a tentacle and a flamethrower. It doesn't use them too much but you should watch out for them. Keep yourself stabilized and fire at the eye of the boss. Use any Aura bombs that you have. Hopefully, you'll destroy it quickly and painlessly.