In the first game, Arngrim is not allowed to be transferred up to Valhalla, unlike most of your other Einherjar. Freya initially gives you the reason that it's because he's just not "hero" caliber, but over the course of the game you can get his Hero rating up pretty high, well above the level that most chapters request for Einherjar to be sent up. Initially, this was probably a gameplay cheat since he's needed for the best ending. Then comes the second game, where his preincarnation starts out opposing Odin's plans before being turned into an Einherjar. In the third, his Truthade profile says he was booted out of Valhalla and back into the cycle of reincarnation after mouthing off to Odin about the second game's events, which better explains why Freya said Arngrim wouldn't be welcome in Valhalla — she recognizes him and doesn't want to deal with him causing trouble again. - Mr Death
On first hearing it, Surt's last words in the B ending ("It can't be! *cough* Evil.. you mean to say evil prospers? I do not accept this.. I do NOT ACCEPT THIS!") could be taken as the villain being a deluded Knight Templar or Well-Intentioned Extremist — believing he's right, but still the villain. But then you get the A ending, and he has a similar reaction to Loki, refusing to work with him when he finds out about Bloodbane and Fenrir. Then play Silmeria, where Odin is most definitely a villain and turns out to be the cause of Ragnarok. Surt was right. Odin is evil, and in the B ending, Lenneth is unknowingly a Villain Protagonist. That's why it's so unsatisfying. - Mr Death
Listening to the soundtrack, the music for the final boss battle against Loki is titled "The True Nature Of All." What better title for a battle to destroy the god of lies? - Mr Death
Unlike the original legends, Odin isn't omnipotent, right? Well, how did he gain his powers in the myths? He sacrificed his eye. Notice that VP!Odin still has both eyes intact?
He also got wisdom for that eye in the myths. And this, two eyed version is a total Jerkass. Its hard not to see the connection.
One problem in VP is how Surt is said to be the King of Muspelheim, the world of fire, and yet he lives in Jotunheim Palace which is covered completely in ice. The only thing that adds up to the Mythology is Surt's spells and Great Magic being fire based. But think of it like this: they're at war. A Land of Fire may be useful for killing people but it will also probably kill your allies as much as it kills your enemies, plus you can barely build anything without it burning down or being too hot to touch. A land of ice isn't much better, but there's three key factors that make it useful strategically speaking.
The first is Surt's fire abilities can be used to keep his allies warm and alive while the cold is a deterrent against intruders.
The second is that the only way the Asgardians can enter is by using the Accursed Flame Gem, so the only other being that could probably generate enough heat to get in or out would have to be Surt.
The third and biggest issue is similar to how countries that attacked Russia in Winter lost: the cold and starvation did them in. Anyone wanting to attack Jotunheim Palace in a prolonged war will suffer the same conditions, while Surt's abilities make living there possible.
One thing that seems weird to consider is Queen Malabeth's suicide in Silmeria. Why would she do it if she was in a safe space? Well, look at it from her point of view from this game. If this random human stranger managed to make her way to a Queen's supposed safe spot, then what will stop a freaking Valkyrie from doing the same after said Valkyrie is done executing her husband? In other words, Lenneth became an Unwitting Instigator of Doom for the Queen just by finding that room.
Some players found it odd that Wylfred blamed Lenneth for his father's death when all she did was recruit his soul after the fact; directly killing people she wants as einherjar is not Lenneth's M.O. Hrist, however, is shown to be much more willing to just kill someone that she wants to recruit. Since mortals are unaware that there is more than one Valkyrie, the actions of all three sisters has a direct impact on public perception regarding "the Valkyrie", and Hrist's ruthlessness is giving them all a bad reputation.
It's also a nod to Norse Mythology, where sometimes the Valkyries would influence the outcome of a battle to make sure a given person died because Odin wanted him up in Valhalla.
For all that it's completely non-intuitive that the first game has three different transmutation lists and not just one, the game does make it perfectly sensible as to where to search once you know that you should look for items to make it happen. Namely, since Lezard Valeth is repeatedly shown to be the best alchemist in the mortal world, his tower is the natural place to look for a way to improve your own.