Well , Stevie G retired tonight , so there ' s one less rumour debunked . <| sep |> What expansion are you talking about ? <| sep |> As GBAura said , you find the wrench outside . You have to collect 6 items over three trips , then go out and walk alllll the way to the end of the moon . The little glint you find will be the wrench . Since the items spawn at random points , it takes a little luck . You need enough time to make it across the moon , which you won ' t have if you used up too much time picking up the first six objects or playing Space Invaders . The timer will certainly run out before you make it back , but that ' s okay , you ' ll still have the wrench . From there go to Amos ' s room . Somewhere in there is a point where you can use the wrench . Do so and you ' ll get the chip that unlocks Amos for the battles . I don ' t find Amos all that useful . He ' ll show up a few times at the beginning of a battle , then flake off and never show his face again .