6

Metroplex

Metroplex turned into an entire city, which made him slightly harder to hide than the law of gravity. While it's conceivable that a brand new, unrecorded metropolis could escape notice if everyone on Earth was retarded--and if there's one thing the plots of 80s cartoons told us, it's that they were--once you get within the borders the illusion breaks down. Maybe you'll notice that every building is a solid, primary-colored block with no features, or maybe the total lack of inhabitants will be the clue that tips you off.

5

Omega Supreme

Omega Supreme transformed into a giant rocket, linked to 100-meter rail track that went nowhere, on which was stationed a tank the size of a city block. The Autobots realized he was difficult to hide, and when the guys who dress up as giant, idiotic microscope robots recognize how conspicuous you are, you might have a pretty profound problem.

They stuck Omega in the middle of a wilderness where no one could ever see him, and where his ability to disguise himself would surely come in handy. They also tended to forget that he was the size of every Decepticon in the universe put together, and could have ended the war in one metal-mashing minute had anyone ever bothered to roll out and ask him to.

Perceptor! Come with us to fight Megatron! Omega! Go hide in a field! Autobots! Transform and roll out like retards!

Where He Would Be Disguised:

Wherever the other giant-rockets-and-tracks are kept on Earth. What's that? There aren't needlessly long miles of race track attached to an enormous rocket? Well, then he's just retarded everywhere, isn't he?

4

Rippersnapper

Rippersnapper turned into a shark, and if that didn't make him the Decepticon Definition of Bad Ass Metal Teethy Death, the creators decided to bless him with arms and legs, which theoretically would make him unstoppable. Until, of course, a designer looked at him and said "No no no, I don't want him to have cool arms. Give him some gay, little T-Rex baby arms. Yeah. Fuck this robot."

Rippersnapper would have been formidable enough as a robotic shark, but by giving him arms and legs, he was doomed to wander the land. And by making those arms and legs unapologetically shitty, he was doomed to do so looking like a total idiot.

Where he Would be Disguised:

In some kind of freak show petting zoo with three-eyed fish, one-legged frogs and any other abominations designed by a thoughtless creator.

3

Nosecone

Nosecone could transform into a Cybertronian drill-tank. You may notice that "cybertronian" and "drill-tank" aren't Earth words, in which case well done, you're twice as good at disguise as Nosecone was.

He had a tendency to "hide" by simply drilling underground, which you'll notice isn't technically camouflage, thereby altering famous Transformers "Robots In Disguise!" tagline to the simpler and lamer "Robots Somewhere Else!"

2

Swoop

All the Dinobots qualify for this one: They're "disguised" as extinct species except able to talk, painted red and yellow, and just in case you're a colorblind deaf-mute who doesn't understand which direction time goes, they're made of metal. In fact, these are the only Transformers who couldn't even fit in back on their home planet of Cybertron, since it never had animals - so they're not just badly-disguised, they're actually anti-disguised even on a world where giant robots are normal.

"Beep Boop, Squawk, dinosaur noises, nothing to see here."

Swoop is the worst: at least the others get some advantages from their complicated genesis (a marketing executive thinking "What else do nine-year-old boys like?"). In a war that always degenerates into fist fights, despite everyone owning or in fact being energy weapons, T-Rex, Stegosaur and Triceratops are the top things on the "Useful things to be" list. Turning into a clumsy and medically retarded animal when the enemy consists almost entirely of F-15s? That makes his transformation a total triple-changer of suck: he can't fit in on Earth, or at home, and gets deservedly beaten on both.

Where he Would be Disguised:

Swoop's best bet at disguise is to fly up and smash all the lights so no-one can see him. Oh, and everybody is inside. And sedated.

1

Sky Lynx