During the battle Rundus talks to Samus. It's hard to make out, but if u listen, u can hear Rundus' voice. "Can you hear me, Samus?" "Samus, Run!" "Samus, it's too late, kill me!" "Finish it Samus!" Rundus was fighting back against his corruption. There is controversy over the original story, Dark Rundus defeated Samus before Dark Rundus could finish Samus, Rundus broke free of the control, he knew he would lose control, so Rundus killed himself before that happened, hence the ice impalement
Amazing art, this really needs more recognition. It's beautiful, the ways the colors are on Rundas are just amazing, and the pose is extremely cool. Ahhh~Rundas was my favorite hunter...too bad he got speared with a giant pillar of ice.