The maximum coin value is 25c, 5 per line, and the maximum rotation is $25. If your money is small, you can rotate 20c. There are auto play and standard bet options after each win.
If you win a victory with a wild (warrior) symbol, it will double (actually 6 times). This may mean that bonus games usually add some important prizes. More importantly, if you hit more than 3 gold urns in the game, you will add an additional 15 rotations.