Boss battle arrival
Well the tune sounds pretty weird. The tone of it seems to be a pre-boss battle theme where you are heading to the boss and getting ready to complete the game once and for all happily. Could kind of see like some kind of super boss I suppose.
The drums are cool and have a whispering echo like effect to them that makes you think other creatures may be around trying to do destroy the heroes. The piano and synth work well together to create a great chaotic front for this piece. The bass is nice and helps move the song along. At one point it feels like I am hearing a voice getting ready to say something, interesting.
Overall, very interesting piece, completely enjoyable.