I agree, never had any problems with any of the controls including underwater. As a matter of fact it had some of the more precise swimming controls of its time. Forget the exact buttons off hand but one made Banjo kickand the other made Kazooie stroke. Kazooie's broad strokes could be used for quick travel which could then in turn be stopped mid stroke by Banjo's kicks allowing for more precise manipulation underwater. It took some getting used to, but once you did, navigating the waters was always a breeze in B-K.