"Past Transformations" name obviously refers to other transformations not included in the past episodes back in 2019. The third one features Wabuu returning to the bouncy house a week after the birthday disaster, in hopes of what to do with a radioactive tube, only to be confronted by Wuschel, and then they end up arguing with each other, not minding hidden glowing particles around the bouncy castle. Their bodies remain intact but turn muscular on the second phase, before ending up muscular humanoid on the last phase.

Dialogue has to be placed in this description instead of the drawing, as it blocks the view of these pokemorphs placed together:
Part 1
Wuschel: Hey Wabuu, what are you doing here? Your white feline girlfriend is waiting for you at the junkyard
Wabuu: Thanks Wuschel, I'm gonna be sooo late to meet that Crunchbone's pet. Seriously, I have something that bothers me more than a single date.
Wuschel: Wait a second, don't tell me you crashed a birthday party where monsters came out last week, did you?
Wabuu: Yes Wuschel, but thankfully I wore a hazmat suit when that happened.
Wuschel: You knew that happened?
Wabuu: Well, aren't you sooo stuuupid? He he he he, okay no. That suit's meant to protect me from eating chocolate and nuts, but I guess I didn't even bother to wear one when I jumped on a buffet.

Part 2
Wuschel: Mmm, I don't look big enough.
Wabuu: And neither do I. Thankfully you're still small.
Wuschel: Wabuu, mocks won't work on serious situations.
Wabuu: And I don't care, because otherwise, do you want two holes on your head?
Wuschel: Why have you become black and white? You look more like a skunk.
Wabuu: And you almost look no different, except your fat cheeks.

Part 3
Wabuu: Fascinating! I've never felt as much as those monstrous deers!
Wuschel: Did you really come here for a mutation like that?
Wabuu: Honestly, I do. It feels funny to see myself as a humanoid. I guess I was tooooo paranoid to see that coming
Wuschel: Speaking of which, where's your hazmat?

Characters (left to right):
Wuschel (squirrel) --> Skwovet --> Greedent
Wabuu (raccoon) --> Galarian Zigzagoon --> Obstagoon

Wuschel and Wabuu are owned by Dingo Pictures

Click here for the list of past episodes from 2019.

Early Suspicion: Part One || Two || Three || Molly Clarkson
Past Transformations: Two Sams || Derek and Wolfa || Wuschel and Wabuu
Night at Food Station: Part One (NSFW) || Two (Alt ||NSFW) || Three (NSFW) || April Fools
Tourist Attraction: Part One (NSFW) || Two (NSFW) || Three (NSFW)