Code snippet from my ruby hangman gem.

rubycode.rb

def menu
    option_choice = get_input('')
    case option_choice
      when "1"
        menu_start_game
      when "2"
        load
      when "3"
       menu_instruction
      when "4", "X", "x", "Q", "q", :quit
        @display.conclusion
      else
        menu_invalid_entry
      end
  end

  def menu_start_game
    @status = :game_started
    game_method
  end 

  def menu_instruction
    send_message(@display.instruction)
    start_menu
  end

  def menu_invalid_entry
    send_message "Invalid entry, retry"
    sleep 1
    menu
  end
 
 def game_method
   until @model.game_complete
     select = get_input(@display.game_warning).downcase
     break if this_is_a_control_method(select)
     break if this_is_the_complete_secret(select)
     check_selection(select)
   end
   you_have_exhausted_all_your_chances if @model.chances == 0
 end