Wild Hearts is a game with a lot going on, and that's by design. There are a lot of Kemono (aka monsters) to fight, a mountain of different equipment to build, and a whole lot of materials to collect. For the most part, Forging Materials are sort of a 'natural result' of hunting Kemono. But, while roaming around the multiple expansive maps in the game, players have a lot of different materials they should absolutely hunt down to save time later down the road.