Freeze a Zebbo inside the wall above the right side of the spikeway, close to the ceiling thorns. Face right, equip X-Ray, move at least a few pixels away from the wall, and jump straight up into the ceiling thorns. If successful, Samus will be knocked back into the wall and end up standing inside it. Use X-Ray immediately to prevent additional thorn hits. If Samus is high enough to be touching the thorns, then i-frames will continue to be refreshed once per second. While X-Ray climbing, be careful to only release X-Ray soon after i-frames are refreshed. Crouch before pressing X-Ray again.