Air Defense

When the level starts, you'll be on the airplane you jumped onto on the previous level. It is flying over an ocean with clouds flying by. It has a top part, a main part, a "mast" (stops you from moving too much), and an inside part for shelter.At the beginning, you'll notice you have 3 minutes to survive, you have infinite ammo, and there's a Beta Lost Soul behind your back. Turn around and shoot it until it explodes, then await enemies. Switch to Yoshi for best results. Shoot all enemies down (Rocket Launcher works best for Beta Lost Souls). Around 2 minutes in, you'll get news about it getting hard and that you need to use your Railgun. Switch to that, then shoot at everything, preferably Beta Lost Souls. Be careful, however; you will need to wait a few seconds inbetween each Railgun shot. Use Yoshi otherwise. Once it reaches 10 seconds remaining, the enemies take over the ship and the level ends.

Walkthrough