"At last! I've done it, Pinky!" Brain said from the lab table. He had on very large goggles, and in front of him a very bright light was shining.
Pinky hopped down from the top of his cage and looked into the light. "What, Brain, taught a horsey how to fly?"
"No you imbecile, I have created an alternate energy source!" Brain held up the round, glowing object for a better look. "Pinky...are you pondering what I'm pondering?"
"I don't know, Brain, are you pondering the existence of the platypus?" Brain stared at Pinky for a moment before hitting him over the head. "NARF! Thank you, Brain!"
Brain laid the object down and compared it to the blueprints for final inspection. On the blueprints read Arc Reactor. "Yes, with this I shall be able to power minions...robot minions to take over the world!"
"And dance pretty dances in the street! TRANS!" Pinky started to do a dance on the table, but quickly fell off of it.
"Saves me time...now, let's test this out." Brain picked up the reactor and headed towards a mini-suit he made, and placed it in the chest. "Perfect fit." He hopped in and the mask covered his face.
And just then, Iron Man burst in through the window. "I am Iron Man—HOLY CRAP, is that a freaking mouse wearing an Iron Man suit?" He ran over to Brain, who was indeed wearing a mini-Iron Man suit. "That's both cute and creepy at the same time..."
"I am not cute, I am the world's worst nightmare! Come Pinky!" Brain hovered off of the desk and watched as Pinky scrambled onto it. "We must prepare for tomorrow night!"
"Why? What are you going to do tomorrow night?" Iron Man asked, unaware of the routine.
"...That's my thing! Brain, he stole my thing!" Pinky shouted.
Brain flew over and grabbed Pinky from the desk. "No one cares, Pinky. And we're going to do what we do every night, plan for a future story where we try to take over this miserable fanfiction site ...AND THE WORLD!"
The two flew out through the window and away, Pinky's idiotic laughter clearly heard in the distance.
"Who were those strange mice..." Iron Man pondered.
They're Pinky and the Brain, Brain, Brain, Brain, Brain.
Iron Man looked around for the mysterious singing voices from out of nowhere, but quickly gave up. "Well, thanks for telling me creepy random voices! But I still need to blast someone..." A random security guard walked into the room and was quickly blasted away. "Yup, that'll do!" Iron Man flew away through another window, causing more damage.
He's Iron Man, Man, Man, Man, Man.