As for the theme, I really like games based on mythology of ancient civilizations and the fact that this one is based on a deity in Norse mythology was certainly what initially encouraged me to try this game, I also have to say its design of dark tones, perfect images and sound effects epic style strongly stimulate our senses and make playing this game a truly enjoyable experience.
Every time I've played a slot with 243 ways to win or tumbling reels, I have noticed that the paytable has always been weakened in order to balance payouts as this pair of characteristics considered individually always translate into a hit average better than on traditional slots, so I figured that having the two characteristics working together would mean a greater sacrifice on the paytable or perhaps other game features. Somehow I think I had a point since triggering the round of 10 free games resulted not so easy task to me, however, once inside this round chances of re-triggering this feature appear to be increased dramatically, even I managed to get five additional spins right during my first free round. As for the paytable, I actually see that prices are somewhat tight, and my best hits have given me payouts around 25x my total bet, however this has been enough to finish with some gains in my balance. Given these conditions it is fair to predict that it is quite normal to see our balance falling at a pace relatively fast until it befalls any major hit, for this reason I think it's important to have a capital capable of withstanding the slumps and thus we can play with bet levels to try imposing our strategies over the game’s behavior.
In conclusion, I believe that "High5Games" in partnership with "Bally" have done a good job creating this slot of high variance, which is not only great fun but, if we have a good strategy and Lady Luck is on our side, I think it is also possible to take some profits home; it would not be a bad idea to take a look at this slot, it might be one of those games of your liking.