After taking the transforming out of the Transformers, Michael Bay has decided it’s time to take the mutant out of the Teenaged Mutant Ninja Turtles. Much like the Transformers were predominantly aliens in his movies as opposed to robots in disguise, the Ninja Turtles will now have an alien origin. Which makes less sense than their real origin. When someone tells you the name, “Teenaged Mutant Ninja Turtles,” you expect them to be four things. Aliens are not one of those things. Their name leaves little room for confusion. Asking, “Well how can a turtle be a ninja?” the answer is, “They’re mutants.” Case closed. If you asked a blind man to draw a Teenage Mutant Ninja Turtle, the scribble he would produce would likely be balls-on. A Teenaged Alien Ninja Turtle, though? That’s just fucking absurd. How can you be a ninja and an alien at the same time? It doesn’t make any fucking sense. Why would aliens pick the names of famous Renaissance artists for themselves and eat pizza in a sewer? The wouldn't. A mutant ninja turtle, teenaged or otherwise, is required to have outer-space adventures by nature of their mutant ninjosity, but an alien ninja wouldn’t necessarily come to Earth.
Why are they alien ninjas? Did aliens secretly create the ancient ninja arts and pass them on to Earthlings through a Stargate long ago? You’d think aliens would have more advanced weaponry at their disposal and abandon their ninja ways. Predators have cloaking devices which negate the need for ninja stealth. A bo staff is a poor weapon to defend one’s self from a ray gun, unless of course you’re a mutant ninja. Then it’s 100% effective. An alien ninja would be space dust in those same circumstances.
At the end of the day, a mutant ninja would beat an alien ninja every time. The 80’s cartoon was concrete proof of that. Krang was from Dimension X, which gave him the added bonus of being an inter-dimensional alien ninja brain in a giant robot suit, and he still lost daily.