megawaysBison Rising Megaways from Blueprint Gaming has an RTP (return to player) of 96.50%. The volatility is hh. How To Win. The wins in the Bison Rising Megaways slot are made when three (in the case of the buffalo symbol, two)Intro: Ever since the Megaways slot machine mechanics were introduced by B Time Gaming the number of Megaways slots on simply exploded at on casinos. And how could it not?