Hidden Details: (Re)Call Home

Welcome to the one-hundredth-and-seventy-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".

Link to the comic for your convenience

Please only comment with ONE hidden detail or reference!

There's one Loss, one Balthazar, one Miep and one crewmate. Bonus comics don't count.
Trying a new way of formatting here:

FIRST PANEL
1: There's a little framed PlayStation logo on the wall of the PlayStation house.
2: This week's crewmate is visible in the patterns on Knack's head! You have a good eye for crewmates, Generic Hero.
3: Kat from Gravity Rush is drinking from a mug that has her cat on it. At least I think it's her cat, I don't know Gravity Rush, Luffink.
4: And the mug Buzz is using has the same colors as the buttons on a Buzz controller!
5: Huge shame that no one noticed Knack doing crack.

SECOND PANEL
6: Miep was pretty well hidden this week, but Trigger found her: she replaced the wolf in Geralt's amulet!
7: Geralt is also casually walking a griffin that you have to kill at the start of the Witcher 3 (or was it just in that one trailer? I never played the game)

THIRD PANEL
8: Loss is visible in the green spots on the ruins fragment that landed in the sandbox. Found by Cameron Devera.
9: Balthazar is playing in the jungle gym in the background! Glad you noticed the little fella, Spirit of Gotham!
10: Omori and Sans are getting ready to go down a slide in the same background, as mentioned by Karelia Cristina.
11: Ethan's face is being conveniently obstructed throughout the comic, as mentioned by Percylegallois. In the third panel, we only see the back of his head and later his face is obstructed by Nathan's arm or Conker's tail.
12: Normally, Rose winters is wearing her father's greenish jacket. But since Ethan is in the same panel, I had to remove it from her, or there'd be two jackets which wouldn't make sense in this otherwise very logical comic.
13: John pulls the same pose as Marty Robbins on the cover of his LP "Gunfighter Ballads and Trail Songs", known for the song Big Iron (used in Fallout: New Vegas).

FOURTH PANEL
14: As A Sad Fat Dragon with No Friends mentioned: the Xbox and Blizzard characters are discussing a house merger, referencing the Activision/Blizzard acquisition by Microsoft in real life.
15: Haha wow, I was wondering if anyone would be able to figure this out since you can only make out a small bit of the text, but one of the bullet points in the PowerPoint presentation indeed said "Forza Car is a character, not a vehicle!", Charles!

FIFTH PANEL
16: Haha yes, apparently "Pi!" means a whole ass sentence in Pikachunese, UnSaxon51!
17: In the final four panels, you can see the damage Pikachu and Link caused in the backgrounds.

SEVENTH PANEL:
18: Kratos is barely affected by taking a log to the face, as indicated by the little bandage he's wearing in the seventh panel. Good eyes, Lord Circe.
19: When Pikachu recalls away, we can see that he flattened Kirby by landing on him. He's pretty squishy,  I think he'll be fine, Daniel Myhre.

All the details that have not been found are marked italic.