The game retains some platforming traits; the player may disembark from a vehicle and explore the environment in a manner similar to that of the previous games.[5] On foot the duo can grab ledges, swim underwater, balance on tightropes and perform basic jumps.[5] Kazooie's spanner can also be used as a melee weapon outside of the vehicle, in addition to levitating lopsided vehicles.[16] Banjo and Kazooie have limited attack power and agility on foot at first, but the duo can upgrade their speed, stamina and strength by visiting Boggy's Gym in Showdown Town.[14] Scattered around the game's six worlds are musical notes, which serve as currency for the player to purchase certain items such as blueprints, parts, and access to advanced vehicles.