You can play 1 to 5 lines. Be sure to play 5 lines for all lines. Gopher, Duck, and Catfish symbols are scatter symbols - 3 or more matches in a continuous scroll are scattered to activate the bonus round.
In the bonus game, choose a driver, an iron, and then choose a putter. You will win prizes based on the three clubs you choose. If you use four scatter symbols to enter the bonus game, your bonus will triple. If you enter five scatter symbols, your bonus is multiplied by ten.