i think i heard it somewhere!
not saying you copyed them but it sounds like an old game i used to play
Very cool. Love the wicked piano work in it. Very well done. Only reason I didn't give it 10 stars is it's not *quite* as epic (powerful) as I feel a boss battle should be.
This is some Epic Boss Battle Music...very nice!
Please contact me if you would like to use this in a project. We can discuss the details.