Jets'n'Guns/Garden Warden

Pirates have taken over the planet Plop Alpha, and you need to liberate it. It's a long ground mission, so make sure you have all the ground stuff ready. This level's boss has lots of front weapons, but none at the back, so either get a good rear gun or switch around weapons once you reach the boss. If you have good bombs, drop them when you are flying over him. This is very effective.