Marvel's Thanos has been modded into Super Smash Bros. Ultimate, creating the crossover event that Nintendo's strict character curation policies would likely never allow for otherwise. Super Smash Bros. Ultimate might have one of the biggest fighting game rosters ever, but Nintendo is actually pretty adamant about which types of additions it will allow to the game, with rules that have previously prevented fan favorite choices like Goku from Dragon Ball Z and other popular anime characters.
Instead, Nintendo and series creator Masahiro Sakurai have stated several times that for characters to be eligible for a Super Smash Bros. Ultimate addition, they must be from video games predominately. There aren't loopholes, either, it seems - despite the fact that Goku is getting his own game in Dragon Ball Z: Kakarot and has featured in fighters from the Jump franchise before, those appearances don't change the fact that he's mostly based in manga and anime. It's something of a heartbreaker for fans, who have long clamored for the saiyan fighter to join a roster that, at first glance, doesn't seem like it cares all that much about character origins - after all, where else could Solid Snake find himself in a deathmatch with Kirby?
Luckily for fans, though, the Super Smash Bros. Ultimate modding community often steps up in a big way to at least partially fulfill crossover dreams that won't happen without their help. Super Smash Bros. Ultimate modder Demonslayerx8 added Thanos to the game's roster by essentially re-skinning a previous heavy character, using Ganondorf as the base. Based on a video that demonstrates the modder's work, however, Ganondorf's moveset and mannerisms are an eerily great fit for the Marvel villain:
Mods like the Thanos in Super Smash Bros. Ultimate one are fine examples of the ways that modern video game communities keep their favorite titles going by contributing fan-made content to renew interest in the game. It's not like Super Smash Bros. Ultimate really needs the help, of course - it's still one of the most popular fighting games in the world, and it seems set to maintain a spot on the Evo fighting game tournament stage for years to come. Still, fans having the ability to demonstrate their passion and make otherwise wildly improbably dreams come true doesn't hurt a game's staying power.
Unfortunately, though, it does feel like Demonslayerx8's Thanos mod will be the only instance of the villain appearing in Super Smash Bros. Ultimate unless Nintendo dramatically changes its rules for Smash Bros. DLC in the near future. Seeing Thanos in action does feel like there's an opportunity for a superhero-style, cartoony fighter to make some waves, though, especially if it could crossover with other pop culture franchises.