Well HunterXHunter is technically 1999 but I nor many westerners were watching it at that time.
There was more artwork that was inspired by news events, former players, etc., than was created with cartoon or anime references. Here's the breakdown:
Original Artwork Not Referencing Cartoons or Anime
Weeks 1, 6, 7, 10, 12, 15, 16(?), 17, 18
Artwork Based on Cartoon References
Week 2/
Teen Titans 2003-2006 | Character: Cyborg
Week 8/
The Care Bears 1983
Week 14/Spongebob/do not care enough to add more
Artwork Based on Anime References
Week 3/
JoJo's Bizarre Adventure 2012-present | Character: Giorno Giovanna
Week 4/
Gyakkyô Burai Kaiji 2007-2011 | Character: Kaiji
Week 5/Hunter X Hunter 1999-2001 | Character: Gon | Note: The 2011-2014 remake has the exact scene drawn in the Chargers' video.
Week 9/
Chainsaw Man 2022-present | *Inspired by Detroit Lions gambling reference
Week 11/Partial original artwork with some Dragon Ball (Aaron Rodgers as Vegeta maybe?)
Week 13/
Full Metal Alchemist: Brotherhood 2009-2010 | Character: Father (best copied scene in my opinion for Belichick/see below)
Extra anime filler:
- Naruto 2002-2007 | Multiple ninja characters
- Attack on Titan 2013-2023 | Scouts
- Demon Slayer: Kimetsu no Yaiba 2019-present | Multiple characters
- My Hero Academia 2016-present
As I mentioned earlier, post-1990's anime references are pretty evident in the video.