Note: There is a tread exactly like this in Futurama Madhouse Massage Board
"Here!" but there was not to many people putting their thoughts towards it, so I thought I'd post it here. I've also searched the board and no one seems to have ever been talking about it. Plus I've had this thought in my head since I first saw the movie to it's end.
Does Yivo have mind controlling powers over his victims (in other words the power to brainwash his victims), and a slight mind controlling power in the air itself around him to make Leela kiss him near the end of The Beast With Billion Backs? He must have just look how the characters were acting like Fry scene.
So yes, I believe Yivo does have mind controlling powers. Do any of you?
Fry: So we got her, huh? Bring her in!
Zoidberg: Do it already!
[Smitty and Scruffy drag in a resisting Colleen]
Fry: Hello, Colleen.
Colleen: Fry, please! If this is about your futon, I dold it to pay the 'phone bill that you skipped out on!
[Cut to copy of telephone bill showing $6,421.12 of calls to Dial-A-Joke.]
Fry: Colleen wasn't satisfied with me. Were you, Colleen?
Colleen: Come on Fry, this isn't cool!
Fry: She had to have four other boyfriends! I guess she never thought I'd become tentacle pope of the world!
Colleen: You know what? It's true. You weren't enough for me! No one man is! You were great, but you weren't Chinese, you weren't Cameroonian, and you certainly were not the "king of karaoke" as you so often claimed. And if your ego can't take that, then you don't deserve to be tentacle pope of anything!
Fry: Oh yeah, Colleen? Well, I've got one thing to say to you. ... I completely agree!
Colleen: You, you ... What?
Fry: Why should you be satisfied with one man when love needs to share itself with the whole universe?
Colleen: Wow, Fry. You know, that's really ...
[Fry shows her a tentacle. She screams. The tentacle attaches to her neck.]
Fry: Love the tentacle, honey.
Colleen: I do love the tentacle.
[Fry and Colleen hug]
Fry: Come on out, guys! There's enough love for everybody!
[Group hug with other four boyfriends]
Zoidberg: Aw. [Vomits into two buckets]
Fry mustn't of been himself he couldn't of been, Fry was turned into Yivo's puppet using mind control there must be no other explanation to the way Fry acted here, for the real Fry free from Yivo's mind control would never do anything like this, even if he had the power to do so. And among other characters the way they acted, it has to of been mind control just to the way everyone was acting and being stupid idiots.
"Yivo: Infoshere".at which the apparent brainwashing forced them to like it—this quickly turned out not to be the case, as they had actually fallen in love.
That can't be right they must be so brainwashed and so under his influence that they think they have freedom of thought even though they don't really have it.
EditA theory (so it's not within canon):
"Jakabird Infoshere" look exactly like Humans only with wings and halos over their heads perhaps they are slaves from other universes? For when he's done having his sexy fun, he then turns them into his cleaners giving them immortality so that they can do that forever for him, taking their intelligence and freedom of thought away turning them mindless (yet not zombie like), but once in away he gets sexually bored so he needs to have sexy fun with a new universe.