I finally made it past the liquid hot magma using Rush Coil. I started to make my way through stage 2, but ran out of lives and supplies, and thus had to leave to gather some bolts. Anybody have a suggestion for a stage I can play through and gather lots of bolts?
Note it may be a while before I can act on this, because the TV we have the Wii hooked up to mysteriously decided to stop working yesterday. I'm far too lazy to move the Wii to another TV.