The Heroes’ ghosts were trying to give the Fourth Wall a break- or more specifically- a break from all the breaking. With the next wave of DLC for Hyrule Warriors Legends not due for at least a month, and hype for Breath of the Wild in a lull for hopefully the rest of the year, it shouldn’t be hard to do. Being dead meant that all of a sudden they were quite aware of it’s existence, and the world that lay beyond it was just so tempting! But, with great power came great responsibility, or so they were told. And so, knowing the Wall was there in the first place for a damn good reason, they had tried to patch it up a little after all the abuse it had taken in the past few months.
Green and Vio came by for a routine check on the Wall, well aware that if it crumbled entirely baaaaad things would happen. Unlike most of their chekups, however, they were surprised to find an… inky… thing… ripping down the duct tape that kept their entire reality safe from certain doom.

“What are you doing!?!?! Do you know what that is? Stop! Stop or we’ll all be in terrible danger!!!” Vio screeched once the urgency of the situation registered over his shock.
Green didn’t waste time trying to reason with the thing, instead opting to grab the blob by it’s shoulders and pull it away before it was too late. Or at least, he tried. Stupid ghost physics!
“Of course I know what it is!” he snapped. The nerve! The Fourth Wall Repairman, not knowing what the Fourth Wall is!
He was about to turn around to face the speaker, when he felt a slight chill. Ghosts? He turned around and, yep, two ghosts were apparently behind this travesty.
“Oh, like how you endangered the Wall in the first place?!” the Repairman continued, unfettered by the spectral form of his apparent competitors. He made a show of pulling another strip of duct tape down. "As the certified Fourth Wall Repairman, I think it’s only right that I fix it!“
He pulled a cart from offscreen. It was old and beat-up, but it still moved quickly to his side. It had a red toolbox on the top shelf, and a blue one on the bottom. Both looked nearly as faded as the cart they sat on. The Repairman opened the red one, obnoxiously loud clatters emanating from it as he rooted for something. He pulled out a bucket of cement, a trowel, and a roll of duct tape. Putting all of them in one arm, he turned back to the Wall without a word.