There are three bonus features in the Medusa slot. The video shows the free spin feature which has a twist at the end (Super Spins at 5x!) and also the expanding wild respin feature. There is also a standard pick 'em feature which I didn't bother with as it's not especially exciting. The Medusa slot is definately a high variance game and deserves respect - don't go wading in with big bets at first and you'll see what I mean pretty quickly. Patience is required!