Star Fox 64/Walkthrough

Here is a list of the planets in Star Fox.

Corneria
The first planet to face, Corneria is fairly easy and straightforward throughout the level. There are two bosses - by simply going through the level you automatically will end up facing the easier of the two. When this boss is defeated, Star Fox will proceed to Meteo; however, to advance to Sector Y, you must first get to the other boss by shooting down all the enemies targeting Falco at the point shortly past the checkpoint, then fly through all of the arches in the span of water past that.

Sector Y
The second of the combat zones, it's one of the upper route levels. This is the first of the hard levels in the game. The main enemies are the robots. The big giant Y is also under attack. Here, you must hold of some of the Venom forces. If you accomplish the task here, you get to go to Aquas. If the task is not accomplished, you get to go to Katina.
 * Description: The second of the combat zones.
 * Commander: Captain Y.
 * Bosses: The blue and green robots,Captain Y.
 * Boss weak points: None.

Fortuna

 * Description: Battle arena.
 * Commander: Star Wolf
 * Boss: Star Wolf.
 * Boss weak points: None.

Fortuna has Peppers base under attack. You'll have a total of thirty enemies to beat here. After that, Star Wolf will attack.