Borderlands 4’s Bio-Bulkhead is one of the first bosses you fight in the game and the grappling hook is fundamental to get to the boss. Unlike anything you have faced so far in the game, Bio-Bulkhead ...
The Bio-Bulkhead is the fifth main boss in Borderlands 4, and it shows up near the end of the One Fell Swoop main mission. This boss guide will tell you exactly how to beat the Bio-Bulkhead boss fight ...
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