When you become a ninja, you've got to learn a few things. You've got to learn how to be silent. This requires a lot of tiptoeing, and if anyone spots you, just tell them you're trying to not wake the dog. You're going to have to figure out how to do some karate moves, even if they just look cool and you don't intend to hit anyone (which is a good policy, we think). Lastly, use the art of distraction to your advantage. TV is good, or a Sunday crossword puzzle. This Boys Deluxe Ninja C.O.R.E. Costume will transform you into a ninja who will certainly go down as legendary, at the very least, amongst your group of kung-fu enthusiast pals. The moves are all you. High-ya!