A brand new feature in Ruby and Sapphire is the Pokemon Contests. Akin to Pokemon battling, these contests make use of five unique stats (called "Condition") and using moves in a totally different way. There are two rounds to Pokemon Contests which you will learn about below.
Contests are played out in the various Contest Halls in Hoenn, and like Pokemon Gyms you must topple all the different ranks if you want your Pokemon to be considered true contest gold. Winning each of the contests nets your Pokemon a prize ribbon that says which rank and type of contest your Pokemon won. The four ranks are; Normal, Super, Hyper, and Master, and must be done in that order. The five categories of contest are; Beauty, Tough, Cuteness, Coolness, and Smartness.