Pokémon FireRed and LeafGreen/Controls

Overworld

 * - Move in the appropriate direction (no diagonals)
 * Pick up items, talk to people, etc.
 * Run (Once the Running Shoes are obtained)
 * - Open the menu
 * - Use a "registered" item
 * & - Show help

Battle

 * - Navigate the battle menu
 * - Select an option from the menu(Attack, use item, switch Pokémon, run)
 * - Go back
 * & - Show help