Instructions
Click on the computer terminal in your space ship to launch it, and begin flying west toward the Crystal Gate.
Fly into the asteroid belt. Slow down when asteroids block your path, and speed up when they pass. Fly into the Crystal Gate in the center of the asteroid belt to land there.
Exit the ship and climb Crystal Mountain; jump on the platforms to get higher. You will see the three knights waiting for you and a sword stuck in stone at the top
Click the sword and a vortex will open; you will go into it, letting you pass through the Crystal Gate.