Here's a hack that give the characters a cartoon makeover, whee!
Name: Teenage Mutant Ninja Turtles (U) [!].nes (GoodNES v3.14)
File MD5 5E24CCD733D15E42D847274E7ADD0A76
File SHA-1 89ADF2D9E453FC7FC491F968495C80C0C4A568D5
File CRC32 83213CA0
ROM MD5 2DDDC2CAE0A7FE890235AEF72A9A86AE
ROM SHA-1 B239C2D48E84CA676DEE4461D4D6A1F77F34255D
ROM CRC32 EE921D8E