A tribe of brave warriors lies deep inside the Forest. Tabata, the Chieftain, is terribly sick and Raoni, the Wiseman, is taking care of him. A powerful Forest Spirit took over Tabata’s body and only an ancient ritual can undo the spell. Unfortunately, the most important ingredient is missing: a feather of a rare harpy named Uiruuetê. Aritana, against Raoni's decision, embarks in this dangerous mission. The sacred feather can only be found at the top of the highest mountain, through the lands of the man-eater Mapinguari.

Aritana is a platform game which the main aspect of its mechanics is the possibility of changing your stance. This stances define attributes such Speed, Jump Force, Attacks and Special Abilities. The player must choose between these stances to overcome obstacles and fight the Spirits of the Forest in a quick, intuitive and fun gameplay mechanic.

Aritana will learn new moves and abilities throughout the game and combo movements will help him fight the forest spirits. Meanwhile, Mapinguari will chase him constantly, forcing battles that require concentration and mastery of all skills learned.

With the help of the Shaman's Staff and the benefits of each stance, Aritana will be able to search for the Lost Artifacts and gain access to the Spirit World. This place is a labyrinth that holds pieces of medicinal leaves which, when collected in large quantity, can increase the player's maximum health.

The game follows the old platformer style and brings a high difficulty for those who are careless. Mastering different attacks and avoiding enviroment traps are key elements for the game.