Secret Code is a 5-reel, 3-row and 20-payline video slot by NetEnt company. Gameplay The Wild symbol is represented by a monk and it replaces all other symbols except for the Scatters and Bonus icons. As a rule, a round has 12 Free Spins increasing in multiplier when you get 2 or more Scatters during the round. Play Secret Code for free with no download at Slotopus – vast collection of online slots.