Description: Can you guess Sinko dee Mayo's favorite holiday?! Sinko just finished up his annual bar crawl and headed to his favorite late-night Mexican restaurant in Santa Francesca. If only there was a burrito chum... Notes:Sinko dee Mayo is the first Roperian One-Day Only Fish! Limited time fish released May 4th, 2012 for Cinco de Mayo. The Sinko dee Mayo Fish can still be caught, but only by harnessing the power of Liquid Gold on it at the island of Santa Francesca. To see the full Sinko dee Mayo Fish image, click here.