Gigamind is one of the early bosses you beat as part of the main storyline of Borderlands 3. Do not be fooled by his appearance though. A large brain in a jar riding a hoverboard might seem hilarious, but Gigamind can be surprisingly tricky to take down. He is a curveball that the game throws at the start to keep you on your toes, forcing you to reconsider your weapons and build options.