Board Thread:General Discussion/@comment-7264949-20161002190336/@comment-29926185-20161106201712

^Canon or not, it was still weird for it to take place at the space tree after the events of 'Space Escape'.

I think my theory that this episode was supposed to take place before 'Space Escape' but that episode came earlier than originally planned due to the Regular Show Bombs, and I guess airing the halloween special at the correct date had priority over maintaining continuity. So yeah, they were in the space tree with Chance Sureshot, Toothpick Sally and Recap Robot. And Eileen wore a Samus Aran costume :P