I bombed the floor, went into the lava and fell down the shaft where the ice beam is supposed to be. Every walkthrough I've looked at says that I should now go through a door to my left. But there's no door. :? There are some bricks that I can shoot and bomb, but once I remove them it's just a blank wall. Any idea what I'm doing wrong? I'm playing the Metroid Prime/Fusion version, if that makes a difference.
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