 In the case of "" and "", the weapons returning from the previous game can either be purchased or the save file from the previous game can be used to obtain them for free and/or a reduced price.In addition to weapons, Ratchet gains many gadgets with varying uses.Some gadgets are necessary to travel about some levels, such as "Grind Boots" that allow Ratchet to grind on rails, or a Swingshot (portable, reusable grappling hook) that allows him to grapple a target and swing across gaps.