ok well i have no idea how to extract sounds from a flash game and im afraid the voices and attacks and linked together as well as the hits so to do this separately like is needed would be impossible to record cleanly. the only thing i can think of for you to do would be.
1. figure out where they got those sounds cause chances are they are from an actual game and not made for that game specifically.
or 2. figure out how to extract from flash files if theres a way.