@Saxonandproud The goal is to conquer the mainland (ie: The British Isles). The Vikings came in and attacked, not the other way around. Other factions in the game can't sail into the deep waters (they can only be on the coast). It is impossible for other factions to reach the Viking lands.
The only one I'd have to disagree with is Andross' Brain. Once the eyes are gone (which is really easy to do), it's basically a pattern that takes a few seconds. I have never found him annoying. I don't think there is an annoying boss in that game, unless you count the Orbital Defense Satellit...
@Saxonandproud The goal is to conquer the mainland (ie: The British Isles). The Vikings came in and attacked, not the other way around. Other factions in the game can't sail into the deep waters (they can only be on the coast). It is impossible for other factions to reach the Viking lands.