Its a very interesting slot froggy, i gave it a try and have seen some quite unique things indeed.
First interesting thing is that slot consists of 4 rows insted of standard 3. Than a very unique wild, sarcophagus that is 4 fields long at can appear in full size on the reel (witch would than be an equivalent of wild entirely expanded) or just a part of it when it acts as a stacked wild. As froggy mentined, on free spins it will always move to cover entire reel.
Slot is relatively cheap to play for a 50-line slot, betting varies from 0,50 up to 25 euros
(or pounds depending on currency chosen). Most of minor wins cover bet amount and hit chance is high enough. Jackpot is relatively average but good thing is that free spins can be retriggered and that gives a bigger potential.
The only thing i didnt like is the fact that less than 3 scatters pay nothing, and 3 of them only 2xtotal bet. Still very recommendable slot.