This annual Boruca festival marks their victory over the Spanish conquistadors in the town of with the same name. The men wear huge masks, some of them representing people, some - animals. All of the masks commemorate the ancestors of Boruca tribe. The bull represents Spanish conquistadors and other forces that tried to interfere with Boruca people lifestyle along the years. In the end of the festival, this mask is burnt down.

Throughout the years, the festival has become a symbol of Boruca culture and its resistance to cultural assimilation. Fiesta De Los Diablitos takes place in Boruca in the end of December—beginning of January, and in Rey Curré on the first weekend of February; both villages are home for Boruca indigenous tribe.