I was listening to Samba de Amigo's sountrack when doing this. The theme for that game is amazing. It's meant to say "muerto(s... forgot the 's') del grupo" which is apparently "dead party" ... But I could be wrong hah. Cheers.
I'm only in spanish 2 so I can't be sure but I think that's literally "deaths of the group" ... probably what you were looking for would be "fiesta muerta" it's a cool concept though //thinks of that spanish holiday day of the dead