This deal is not shown on their front page, so it's not so obvious to find it ;-)
Guacamelee! Gold Edition is an amazing combination of platformer and fighter, set in a magical Mexican inspired world. Players control Juan Aquacate, a lowly agave farmer turned superhuman luchador, battling through lands living and dead to rescue his true love. Guacamelee! builds upon the classic open-world Metroid-vania style of games by adding a deceivingly deep combat system, a dimension switching mechanic, and co-operative multiplayer for the entire story.