You can unlock 25 free spins and you’re also able to re-trigger during the Bonus Spins feature.
This slot type enables you to choose from different numbers of Bonus Spins when you enter the bonus round with Valkyrie, Odin, Thor & Loki Free Spins.
During the Loki Bonus Spins you can unlock another 4 free spins if you land the scatter symbols again.