AlienCruise

Story-related; cannot be missed.

The planet of Titan becomes accessible after completing the area 'The Counterattack' as part of the story. The first level is more of the same you should be used to at this point. The second level is pretty long. There are some new obstacles in this level, and then a miniboss fight that can be annoying. As soon as he's in screen in the upper right, focus fire on him entirely (even during the dialogue) until the sphere in the center comes out. At that point, go on the left side of the sphere and right next to it, and be very aggressive to destroy it as soon as possible. It makes all enemies in the area invincible, so it's your worst enemy. As soon as it's destroyed, dodge as best you can and finish off the enemies, then chase after the miniboss and finish him off. The rest of the level is just dodging obstacles. The third level is straightforward, just be mindful of the laser beam that periodically shoots across the middle of the screen.

The boss fight has multiple phases. The first is against a simple robot with predictable and easily avoided shots. Focus fire on the orb in the center to kill it. The second phase has projectiles that aren't too difficult to avoid, but be extremely mindful of the two little turrets that shoot electricity streams. These can make dodging a huge pain, and will likely be where you lose lives. Stay in the center as much as possible, not only so you can keep damaging him but also to give yourself maximum space to react to everything he throws at you. The third phase is relatively simple. You can actually stay right in the center shooting him through most of his attacks. The fourth phase he's just a ball at first. Focus fire until he turns into a ship. At that point, just focus on dodging his bullets while you inadvertently shoot him. When he turns back into a ball and goes to the center, be ready to quickly avoid the rotating lasers. Once he's done, focus fire to finish this boss off.