Gunnar and Scooter are Separated at Birth identical twins.Gunnar was adopted by an Icelandic family and Scooter by a rich American family. Their father may have been a hockey player and they both inherited his talent and passion for the game.
Frollo was reincarnated into Wraith.Both Frollo and Wraith love burning people. If Frollo got sent to hell, he could have became reborn as Wraith.
Team Iceland was made up of the best players from the hockey superpowers.Iceland in this film is Team USA's greatest rival despite Iceland not being a hockey country in real life. Also, the real hockey superpowers (Canada, Russia, Sweden, etc...) are hardly mentioned. Maybe Iceland somehow got the best players from those countries, making Iceland a hockey superpower and the other teams a lot weaker. Plus, people have commented that Gunnar's (played by an American actor) accent seems fake. Maybe he's actually Canadian.