This slot takes place underwater on a 3x5 reel grid, with 9 paylines only. On the reels, you will find different skull sets based on the main characters in these slots. The main characters are the highest-paying symbols. How these slots work is on the concept of Jack Hammer. Whenever you get a winning combination, the winning symbols are sticky, and reels re-spin. If more winning symbols are added it continues to re-spins until no more winning symbols are present.
Now you have many opportunities to win the bag and with sadness, it does not have a multiplier, however with 9 paylines the paytable seems decent, so I guess that is enough.
Triggering the free spins feature can sometimes take longer, but what helps is collecting scatters during the re-spins feature. You can collect scatters while the reels re-spin. That makes it easier to trigger, but honestly, it does not either. Scatters are very rare on the reels.
Landing 3 scatters award the free spins feature and during free spins, all low paying symbols are removed, making it better for combinations with higher value symbols to hit. Now symbols are sticky and remember only high-value symbols. No multiplier however the paytable si much better than similar slots out there.
I love this slot, although I was not a fan of Northern Sky, due to the hit rate and volatility, this one is definitely better. I had a couple of x100x hits, but nothing significant, as you know Quickspin slots are all good for wagering purposes in general.
Overall great game, give it a try you wont be disappointed.