Board Thread:General Discussion/@comment-26242189-20160601064323/@comment-27907368-20160602010340

They all occur in "fun" values next to one another, right? 61, 62, 63. They're pretty close to each other. They may be for some reason - that one guy does have Gaster's head in his hands. ^^'

The number associated with Gaster himself is "66," going off of his battle stats being sixes across the board. In fun 66, Mystery Man appears.

Maybe they are searching and are getting close?