Species Location Weapon Abilities The alpha mutant is a boss-level enemy in The Lost Frontier. It is similar to the silverback, which it appeared to use against Jak as pawns around Far Drop before engaging him in a fight. Barter stated that it, along with the other mutants, had shown up a few months prior and that he had been fighting them "big time" ever since. He hired Jak to take them out in exchange for supplies, concluding with the bossfight.