A lot of the badges you'll collect in Peak revolve around things you can do while you make your way through each biome, or they challenge you with carting a specific item to different areas of the climb. There is the odd exception to this rule though, and the Ultimate Badge falls into that category.
This badge is definitely one of the easiest to unlock during a run, given you can track down the correct item to complete the challenge. Finding the right space to carry out this challenge, however, is a little more tricky. Here's what you need to do to unlock the Ultimate Badge.
