I've tried a few games and had moderate luck.
Can never find all 6 items on the Jules Verne bonus game, the Angry Brids one is boring as is the farming one, the Excalibur one gives the most bonuses and Blackjack seems to give the dealer 20 rather a lot.

Since yesterday, I haven't seen a single "V" for building mis-located casinos and wins have dropped to near zero.