America is dressed as the Marvel god/superhero Thor, while the rest are dressed as the version of the gods from the comic "Valhalla". Sweden is dressed as Odin.
One superhero that for sure will never be taken seriously in Scandinavia is Thor. Ever.
"Valhalla" is a re-interpretation of the old myths. For example, even though he’s a jackass, Loki doesn’t turn more and more evil. It’s just the other gods who trust him less and less because he keep causing trouble, and in the end they start blaming him for things he didn’t do.
In the story about Balder’s death he doesn’t intend for Balder to die. He just wanted to make a fool of Balder’s brother Hod by making him think he could hurt his brother with a mistletoe. So Loki was just as surprised as everybody else when it killed Balder.
Neither did he betray the gods during Ragnarok. The jotuns captured him without the gods knowing, so when the battle started they saw him on the jotuns’ side. He tried to get over to the gods, but was attacked by Heimdal.
In 1986 the comic got turned into a cartoon http://www.youtube.com/watch?v=YNX_Heix390