An oldie but a goody from the early days of Internet videos is “The Ultimate Showdown of Ultimate Destiny” by Lemon Demon. Essentially describing a battle between everyone from Batman to Shaq, they blast, punch and kill each other for centuries until the unexpected champion emerges. The flash animation is charmingly crude now but it’s still super fun and catchy and you can check it out below.
https://www.youtube.com/watch?v=4WgT9gy4zQA
