@Background Pony #0052  
Do you see ain’t changelings tags on here, because someone make this did not puts any tag of them here.

When Changelings get hiccups.

Ok how it this happened?

This is addicting to watch…

Chose your pony.

I knew Pinkie was a shapeshifter.

Pinkie is the only one who appears to like this transformation…

Extra points for the sheer boinginess of their manes.
 
Double extra points for Pinkie’s hair actually ballooning out of Fluttershy’s.

“Wow, Manny’s getting good.”

What is she, Flubber?

“Oooh!”  
“Hang on girls. I can explain this.”  
“Twilight, I don’t feel so good…”  
“It’s fine. It’s fine. Just don’t think about her like that.”  
“Oh my gosh. Oh my gosh.”  
“Wheeee~!”

@DanielTepesKraus
 
But then we wouldn’t have that awesome sound effect for when they explode into pillars of flame. :(
 
^{_{I’m referring to the one from To Where and Back Again, to be specific}}

Reminds me of the intro from that ancient Ghostbusters cartoon.

What it would look like if the mane six shared a body.

i really really wish the changelings transformed like this.

Looks a bit painful!

Seems like it would be a status effect in a videogame. “Unstable Form”. Being able to, however briefly, become the best pony would be worth it.