The wild symbol is Pharaoh, he can substitute for all of the other symbols, except for the scatter and bonus symbols, to help and form winning combinations.
The scorpion is the scatter symbol and the unicorn is the bonus symbol.
If you land three or more unicorn bonus symbols from left to right along an active payline a mini bonus game starts. You spin a bonus wheel to win multipliers of your line bet. If you trigger this bonus from the free spins then you win an extra 5x multiplier.
When you land three, four or five scatter symbols anywhere on the reels you win 5, 25 or 100 free spins respectively. During the free spins, a feature called Super Payout Mode is active and it awards a 5x multiplier to all wins. Best of all, the free spins can be retriggered indefinitely by landing more scatters on the reels.
To win the slots progressive jackpot make sure that you are betting the required amount per payline. Then all you need to do is land five wild symbols a long a payline and the jackpot is yours.
In addition to the progressive jackpot, there is a top fixed payout of 500x for landing five pyramid symbols. The boat and the Eye of Ra can both payout up to 300x, the flower and the fish can both payout up to 200x, the person and the blue sphere can payout up to 150x, and the sphinx and the bird can both payout up to 100x.