Failure, Hum, and Shiner… the space rock trifecta of the 90s… rocked harder than Nirvana and smarter than Radiohead, and it is proof that life is unfair that nobody knows about them.

If you like Failure and Hum, I'd check out Shiner as well.

The memory of him jumping into the portal with Rick and leaving Morty behind is definitely not a fond looking one from Morty's perspective.

Mr Poopy Butthole was in the room off to the side when Uncle Steve was eating breakfast. MPBH could have gotten the fake elevator memory from Uncle Steve. He could've been a real alien that Rick and Morty picked up at some point offscreen, who hung out with the family a few times. Or there are a dozen ways MPBH could…