In Napoleon Dynamite, Rex teaches rex kwon do, a self-defense training program that he developed over two seasons of fighting in the octagon. Bow to your sensei. BOW TO YOUR SENSEI!
Ryu is notably one of Street Fighters most popular characters. Premiering in the very first Street Fighter in 1987, he’s been hadoken-ing his way through a series of sequels, crossovers, and even mangas to date. He is arguably one of the most prominent icons in video game history. Just Google ‘Ryu’. Do it. You won’t.