Teenage Mutant Ninja Turtles (1988)

This show tells the adventures of four turtles who were transformed into humanoids by a strange ooze and were trained as ninja by a human martial arts master, Hamato Yoshi, who was changed into a humanoid rat, Splinter, by the same substance. Together with the intrepid reporter, April O'Neil, they fight against the threats against the world, like Shredder and Krang.