Hidden Details: Curious Cat

Welcome to the eighty-sixth 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".

Please only comment with ONE hidden detail or reference!

There ONE Loss, ONE Balthazar, and NO JoJo reference. Bonus panels don't count.

Incineroar's whiteboard is basically one big collection of hidden details so it's hard to decide what I should count and what I shouldn't, but just shout your discoveries and I'll include them if I deem them hidden-detail-worthy.

1: You can see Incineroar peeking from his room before grabbing Kirby in the first panel.
2: Isaac is apparently the Assist Trophy of the month, according to the little portrait in the first panel. Found by Gavin Walker.
3: There's a bunch of crumpled pieces of paper in Incineroar's room. Seems like he's been theorizing and obsessing over these newcomers for a while.
4: The red dot distracting Incineroar was there even before I decided the main character of this comic was Incineroar, but I did partly choose Incineroar because he (as a cat) would work so well with the laser pointer, Phloxiana!
5: The fact that I wrote Doom Slayer/Guy on that whiteboard is just because I never know what his official name is supposed to be, but I'll give you a point for that insightful piece of trivia, CrazySeanDX!
6: Yep, Loss is represented on the whiteboard, Zach! It's barely visible behind Incineroar but it's there.
7: And correct Luke, Balthazar is there as well :)
8: Cinderace is apparently deconfirmed by the "crowd chant theory". I definitely let some of my personal opinions slip into this comic as I would go absolutely apeshit if Cinderace is a DLC fighter because I hate his design. Still, good catch John Hattan.
9: There's a little Sephibutt drawing on the whiteboard too. Good eye, Trigger.
10: Eggman seemed like the most likely Sonic-newcomer, so I included him on the whiteboard as well. Found by Erin.
11: Likewise, I've seen a TON of "leaks" and rumours about Ryu Hayabusa, so I made sure to include him in there as well, Marwan Abunura. Damn, Ryu Hayabusa and Marwan Abunura sounds like an amazing name for the two main characters in a buddy cop film.
12: Kirby had to hold the gun somehow, Zanreo, so I made him grow fingers, hahaha.
13: Kirby is holding some (blood) money and has a little blood spatter on him in the final panel. Seems like he didn't leave the job unfinished, Rozorox.
14: Sakurai has six controllers now. He upgraded from the four controllers in the Byleth reveal.
15: And finally, you're right Cherry, Sakurai is wearing a cool E3 shirt. Imagine him actually wearing this next Tuesday.

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