Walter is still normal

Walter stood in front of the two, but only dressed in underwear.

"Ugh, papa! Please get dressed!" came from Peter only.
"Yes, papa, please!" Tim lined up.

"Guys, I'll look completely different in a moment! I just need your help, you have to document my new invention, the iBod!" Walter pointed to the equipment at the far end of the room, including a video camera.

"What do we have to do, papa?"
"Just film me!"
"OK!" Tim took the video camera and started recording.

"So, and now ..." said Walter, aiming the device at himself. Fizz hit him the beam from this and suddenly there was...