The Henry The Ape Free Spins bonus boils down to how many Scatters you see in view:
3 Scatters bring 8 free spins. Plain and simple.
4 Scatters release 10 free spins. One mid-value symbol will be transformed into a super high-paying symbol.
5 Scatters will unleash 12 free spins and transform all mid-symbols into super high-value icons.
6 Scatters will add 15 free spins and transform both mid and high symbols into super high-value icons.
That’s just the beginning of it. As is common in the world of
new slots, the game expands from there. As soon as the round starts, you’ll notice the Henry The Ape meter above the grid. It collects Gold Records that appear along with super high symbols. Collect 4 Gold Discs (aka records), and the game will activate additional free spins and super high symbols:
4 Discs award +5 free spins;
8 Discs add +4 free spins;
12 Discs give +3 free spins;
16 Discs grant +2 free spins.
In the bonus round, Wilds always have multiplier values attached.