I think I found a way to emulate it if supernova does not work
first download the swf file for boxhead
you can find it here:https://swfdirect.weebly.com/box-head-2play.html
secondly go to this website:http://flashplayer.fullstacks.net/ and attach the file then select emulator 1 and refresh
 "Boxhead: 2Play Rooms"){kind=icon}