Teenage Mutant Ninja Turtles Mutant Mayhem Bop Bag TMNT Michaelangelo NEW 42” Brand new in box Get ready for some turtle-tastic fun with this rare Teenage Mutant Ninja Turtles Mutant Mayhem Bop Bag featuring Michaelangelo action figure! This 42 inch tall Bop bag is perfect for fans of the TMNT franchise and features Michaelangelo, one of the most popular characters.comes in its original packaging, unopened and ready for play.