Pinjas are the best
This may be the best thing you ever made and I think it helps a little that you do not focus so much on crude humor this time. First, you think it is a "Madness Combat" tribute, but then it simply goes all over the place! I love how the ninja just kills all the Spartans for no reason other than being, well, annoying. It may be the first time I ever saw a ninja use a gun before! The Mortal Kombat references were great, especially with how the ninja was punched through all those floors. It is also cool how the blood just leaks out.