I thought the "Wild Muzio" was the bishop sac in the Muzio Gambit 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. o-o (Muzio Gambit) gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7.  White is lost in that line after Kxf7 9. d5 Qf5 (not Qxd5 when White is probably won,) but it's complicated and certainly a lot better than this bishop sac.  After 6. Ke8 White is short compensation for the piece.  If 7. Qxg4 (dubious early pawn grabs with the queen instead of deveoping) Black will play Nf6 with a clearly won position.  8. Qxf4 (terrible but what else should White be doing here.) ... d6 and White won't want to play 9. N(back to)f3 which blocks up the f-file, but it's probably best.  After that move, the popular published refutation runs 9... Rg8 with a rook lift hitting the Queen (again) grabbing a pawn, but Black doesn't even need to be that creative 9... Bg7 is possible with enough time to comfortably defend f6 and an easily won game.  After other knight retreats Black can actually keep hitting the queen with 9... Nh5 or play other moves which also win.  You might swindle the unprepaired opponent from time to time with this line even in standard time controls if they aren't careful, but it's completely unsound.  In the posted game (as often happens to Greco) NN's play leaves much to be desired.