The eligible slots really had high volatility. But I was lucky to get some good multipliers by getting the bonus round. I had got a 225× multiplier by getting the bonus round. I also got some 50× to 100× multipliers. It was a lucky journey for me. Although I hadn't won anything good from the 50 free spins. Here is the screenshot of 225× multiplier which I got from the bonus spins when I was playing to complete the wager.