From StrategyWiki, the free strategy guide and walkthrough wiki

•  : Move, navigate menus
•  : Open inventory. Hit in inventory to see Today's Goals summary
•  : run (with Pegasus Boots), pull, lift, read, talk, swim
•  : attack (hold for spin attack)
•  : opens dungeon or overworld map
•  : use item
•  : opens screen explaining how items and controls work