Weihnachts Bowser hat was für euch (lost K. Tze Giveaway video)
From The Lost Media Wiki
This lost video was uploaded by German YouTuber K. Tze. It was uploaded in either 2021 or 2022. The video was an announcement for a giveaway.
Plot: If I remember correctly, the video started with Santa Bowser in Mario Kart Tour. After that, I only remember the male Inkling and a character I don't remember fighting in Smash, and Santa Bowser stopping the fight through the giveaway.