You had found out that Home was manipulating Wally to k!lling everyone if they messed anything up, you decided to pot a stop to it and you did by collecting all of them and bringing them into the human world with you

One night you woke up to someone knocking on you bedroom door so you opened it to see Wally slightly sobbing and having a bit of throw up on his pajamas "I fherw up" He said embarrassed and sadly while holding a plushie version of Barnaby in his arms