Slot_reef is a 5 Reel X 20 payline video slot with sounds,underwater theme and Free Feature. You can play up to 20 lines at a time by a maximum bet of 400 coins per Spin. A wild card on first reel and a "seahorse" on last will trigger feature . Feature consists of the "seahorse" swimming to each symbol on every reel and substituting for all symbols except scatters.Doubleup and save Player options are included in the registered version. There is a facility to adjust the speed of execution and screen resolution ( which will give a full screen if desired).Returns on average 90% to player.