I think it's $15 for 4 reels, not sure if it adds a raven to R1. You can play all the lines with PP off too. If you don't pay for PP then no respins and no bonus.
Non Nevada buffalo also reduces to one Buffalo on R1 if only playing 3 reels. NV only has one buff available on R1 unless playing W4 or some of the newer versions
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Fair dinkum legend