After solving the mysteries in the Sealed Chamber, go to the desert of Route 111 and you’ll enter the Desert Ruins. In front of the visual braille message, take 2 steps right, 2 steps down, then use Strength to open the way to the next room. Save your game before you interact. Regirock is on Level 40. It has a move called Superpower, which inflicts great damage but also lowers the user’s own Attack and Defense stats. Keep using Ultra Balls if you have any left.<br />...<br /><a href="https://www.youtube.com/watch?v=iyxdH4FptP8" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=iyxdH4FptP8</a>