Zekrom

Enter Crystal Peak and follow the singular path forward.

Descend from the ladder.

Use Surf to follow the water east and then turn north.

Make sure all three crystal switches are enabled.

Then go back to the water and climb the east ladder.

Use Rock Climb to scale down the wall and go west.

Use the yellow crystals to scale the wall up and follow the path south.

You’ll see more yellow crystals to your east that take you downward. Use Rock Climb on them and continue south.

Exit to the south.

Once outside, scale the wall using the colored crystals.

When you get the choice to climb the blue or red crystals, use Rock Climb on the blue crystals to your east.

Continue climbing until you can enter the mountain again.

Descend from the platform you’re on using the red crystals to your east.

Then go up a bit and take your first turn west.

Climb the ladder at the end of the path.

On this floor, follow the linear path forward.

The portal with Zekrom is at the end of the path.