So...
About the crouching elephant, hidden banana in the room.
It's not that picking the Banana Guard as a new Adventure Time character in MultiVersus is a bad thing. It's the when, where, and how of it that makes troublesome.
First, there's the internal competition of strictly Adventure Time characters. Marceline, Ice King, Fionna the Human, Lemongrab, Lady Rainicorn, BMO, Princess Bubblegum, just to name a few. Heck, PB could just use the guards in her moveset as someone around here said, like Peach and Toad in Smash. With seven characters making a bigger splash than this, why go with the goofballs?
Second, there's the possibility that this was meant to reuse assets. In that case, Mr. Meeseeks could have done this job and gotten a more positive reception at the same time. And doing that could have coincidentally promoted the Rick and Morty anime, even if Meeseeks isn't confirmed to appear in it.
Third, we pretty much only have three newcomers for the relaunch in 11 days, and one of them is Banana Guard. That. Is. Putrid. I get it that they wanted to use a Cartoon Network character and throw a curveball by skipping over Blossom, Bubbles, Buttercup, and Dexter. Heck, I could even understand choosing another 2010s CN rep, especially considering the renaissance of TAWOG. But this is not a character you want to add when you have room in the budget for three newcomers. Five newcomers, I can understand. I can even tolerate four newcomers. But this is a low blow for darn near everyone.
To add the cherry on top of this banana split, pun intended, the trailer actually ends with Banana Guard asking if we really like him, and not in a joke character kind of way. This makes me feel as bad for him as I do for the fans.
In short, I don't hate the idea of adding the Banana Guard in this game. But how he was added to the roster is something I do not like.
If that slot between Jake and Joker is another divisive pick, I wouldn't know what to do with myself.