Green chuckles at the repairman’s shock.

“Well, yeah, we definitely didn’t see anything like this when we were alive. That’s probably a good thing though, or else we’d have had to deal with existential crises or something!” He cocks his head in confusion when the repairman asked him to describe what he saw. “What I saw? Can you not see through it?”
Vio had been watching the repairman work with curiosity. To the repairman it probably just looked like he was patching a regular old wall, but to the ghosts it looked like the various cracks were magically mending, and the bits of light and sound that had been leaking through were dulling to their original somewhat muted state. It was an interesting process to see! Vio blinked when he heard Green ask if the repairman could see through it, pursing his lips in thought for a few seconds before jumping back into the conversation.

“Well, his job is to fix it, Green, so logically speaking it’d have to be more opaque to him in order to do the job right. We broke the Wall because we can see right through it.”
Green nodded in understanding.

“Oooooh, is that true… uh… sir? Sorry I didn’t get your name. I’m Green and this is Vio by the way.” He waved in greeting, belated as it was. “Well… it looked a lot like our world, same sort of sky and trees and people and stuff… just no pointed ears anywhere, but it kinda weird, because we saw us in all these weird places. There’s these thingies called video games, I think, where you control this character with this plastic… thingy… and you see a changing picture on this magic screen… thingy… and yeah I’m not doing a good job, I’m old ok?” Green chuckles embarrassedly, hiding his face in his hands. “But yeah, it was weird seeing ourselves with this third person perspective.”

“Yeah, it was weird, a bit. I thought it was funny how everyone lumped us together with some of the other heroes as ‘Toon Link’ even though we’re from very different points in Hyrule’s history. Plus, we all look different! The art style was cute though, I have to admit.” Vio grins at that last sentence, wishing Blue or Wind were around, since they hated being called cute. Suddenly his eyes widen slightly as he realizes something “Wait… wouldn’t talking about the stuff beyond the wall break it more?”
The Repairman considered the green one’s point. Most characters he came across took it in stride, but, then again, some worlds were more Fourth-Wall friendly than others…
“Oh, it’s fine,” he said, half-waving and half-shrugging. “I don’t have a name anyhow. But, uh, yeah, I can barely see through it.” Under his breath, he added, “Sadly, I can still break it, though.”
He nodded as Green described the so-called “real world." That was about what he expected. Though… he never heard of these universes being seen in third person.
"No, no, I get it,” he said, encouragingly, “It’s mostly what I expected.”
He chuckled slightly at Vio’s comments about their art style.
“Shh,” he said, hastily. “Just don’t refer to the other side directly, and you should be fine. I think just talking about hypothetical things in other universes is okay.”
He didn’t know this mind, but it was always how he operated. Why stop now?