Maybe since the Ing can’t possess Samus, they’re trying their hands at subliminal messaging instead? XD
To Metroid Hunter: Well, I’m glad. At least now I know I’m not insane. lol
I think if you listen to it long enough you will get addicted to shooting U-Mos!
I always thought they were saying “choose” (and it is a menu… where you choose stuff… if you go to the options you’re not joining them yet 
)
It’s saying shut up, Samus, just hump us Samus.
LOL… I am hearing joins us hump us…i can think of alot of things that it could say… also in phendrana drifts when ur at that place… i forget the place ill tell ya the name later, but it says hes a rock star let him do taht… and also in MP2 like the main menue or credits it says smo smashy smo smasy smo…
I hear completely different stuff each time I hear it. One time, it was:
Samus-es-Samus-es-Samus-es-Samus-es, another was…
Join us-us-Join us-us-Samus-es-Samus-es…
Hey, I wonder if it’s random each time you play, or in each game disk, lol!
Just kidding, but it could make some sense.
Every time I listen, it seems to say Join Us, Join Us, Join Us Samus over and over again. Very Creepy…
Strange.
Anyway, why make a topic about different voices we hear in a menu screen?
Very Strange.
The music is cool, whatever it is…
unless it really is “hump us, samus…”