Fossil Fighters: Frontier is an action-adventure RPG that was released for the Nintendo 3DS in 2014 in Japan and 2015 in other regions. Developed by Spike Chunsoft and published by Nintendo, the game is the third installment in the Fossil Fighters series. Players embark on a journey to dig up, revive, and battle with Vivosaurs. These creatures are based on real-life dinosaurs and other prehistoric animals. The game features an open-world environment for exploration, where players drive around in customizable vehicles to excavate fossils and engage in turn-based battles.