For game consoles, the need for a gamer to be familiar with the controller buttons which corresponds to a particular command in the chosen games such as Tekken and Mortal Kombat is a need to enjoy the game and interface much easier. Such controller buttons once combined properly will produce special moves and secret effects that make the gaming experience for games a whole lot worth it.
Truth of the matter is that most games, either fighting or role playing games offer more than just graphical presentation to impress the gamers. For older people the essence of game play and hidden secrets in games is something that they would initially want to crack. A good source to find out such hidden codes and combinations would be the Internet. A lot of sites like Gamespy offers such codes and walkthroughs for gamers to practice them once they get the chance to try it out for themselves in their PlayStation, Xbox and Wii game consoles.