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.