We go from the Ice Beam to the X-Ray Visor, which involves a lot of running around the world, through an underwater tunnel, and one intense combat gauntlet in the Phazon Mines. Also some discussions of oddly-paced parts of this game.
Links:
It's about to get scalding hot in The Sunchamber
Getting the Wave and Ice Beams and Thermal Visor, and fighting Thardus. Also: reimagining Samus's beams, problematic control setups, and the smell of cordite.