Yes, Piggy Bankin' is one of those slots that can be +EV if you know what to look for. But good opportunities don’t last long because everyone is monitoring them. The game works on a banked system, where the best moments happen when the blue pig is over 20-25, and the yellow and red pigs are also high. The problem is that if you see a good slot, it has already been checked before you, and the chances of it just sitting there untouched are low.
I often test different slots using bonuses and free spins from sites like
this one. This allows me to analyze RTP, volatility, and slot behavior without risk. Based on that, I have my own stats and conclusions, and one of the main things I’ve noticed is that most slots behave differently in bonuses than in real play. In Piggy Bankin', I’ve seen that if you don’t land the right symbols in the first 7-8 spins of a bonus, you won’t hit a Mega or Grand no matter how many free spins you get. Overall, if you understand slot mechanics and don’t play randomly, +EV opportunities exist, but there’s always competition for them.