Starcraft series V's Halo series

[Goddbless]

Fuzzmosis said:
For some reason I entirely forgot about the flood. That's rather impressive of myself.

Possibly because I never saw them as anything but "Hey, side thing to break up monotony". Then again, I've yet to play Halo 3 singleplayer for any real length of time. I should get on that.

Besides, let's do our defence on differences, aside from the fact there's 3:
Halo:
Humans: Hi, we're... in space because it's the future.
Flood: We're parasites that.... umm, parasite. Space parasites. Kinda like those real ones, but a bit more deadly.
Covernant: We're the aliens that aren't really invading till game 2. But we're in Space, humans are in space, it's war time!
Forerunners: Yeah, you can thank us for fucking saving creation. We don't show up aside from brief hints in the story. Maybe we'll be fleshed out more in the next game.

Starcraft:
Terrans: We're criminals in space because Australia was full.
Zerg: We're created organisms attempting evolution by assimilation. Hey, you look yummy. What traits can you pass on?
Protoss: We're created organisms attempting evolution by physical and psychic power.
Xel'Naga: Yeah, you can blame us for fucking with creation. We don't show up aside from brief hints and maybe, just maybe we'll be in Starcraft 2. Till next time!

You forgot one!