Hidden Details: Super Zoom Bros 2

Welcome to the fifty-seventh episode of the Hidden Details blog!

Have you found some obscure reference or detail in this comic? A JoJo reference? A sneaky little Loss? A callback to a previous comic? Let us know what you've found in the comments! Every detail that has been found will be added to the list below. Once everything has been found, this comic will officially be marked with "all details found".

The Patron who has found the most Hidden Details at the end of the year might win something nice... We still need to do the big reveal of 2019's winner, but it's happening very soon!

Please only comment with ONE hidden detail or reference!

There is NO JoJo reference, NO Loss and ONE Balthazar. Bonus panels are not counted.

1: Alph apparently has a cool Turtle Beach headset (the one that's being stolen by Pikmin in his Zoom screen). Correct, Screen Name.
2: Donkey Kong has an old picture of Cranky Kong (I believe) in his room. This picture is there in the official reveal trailers! Good eye, Luke.
3: There's also a whole bunch of banana peels visible in the same background.
4: I'll count this one, Zach. I wanted to give Chrom a crappy webcam because he's a dad. The Chrombook joke came later.
5: Chrom is wearing the sweater he got during 2018's Christmas Special. Glad you mentioned it, Marwan Abunura. ;)
6: Chrom has pictures (all official art) of his darling daughter Lucina pinned to the wall behind him. Correct, Phloxiana.
7: Zanreo and Daniel Myhre pointed out various aspects of Sonic's room that's full of merchandise of himself, like the posters and the slippers. There's also a Sonic-themed bed, a Sonic Funko Pop (the bane of my existence), among other stuff.
8: The objects in Joker's cabinet are actually acquirable in Persona 5.
9: Sakurai's house is actually his house. I copied it from his presentations. It's pretty accurate.
10: Yep, Sakurai's list of rules is based on the misbehaving Smash fighters in the previous comic/Zoom call. You're absolutely right, Toon Draw.
11: That is indeed a Minecraft Balthazar in Steve's room, Eli Hurtt!
12: And finally, yes, Sakurai is indeed rocking a shirt with Halo logo's on it, John Hattan. 

After one week, I'll reveal all the details that haven't been found. These ones are written in italic.