I have found four versions of him for mugen. Each version does not include the infinity gauntlet but those versions of Thanos is really, really not as powerful as he is in the comics with the Gauntlet . They can be beaten....Never easily however.
|CPOC & Splode||7||6||9||http://www.esnips.com/doc/8f3383c5-6ae8-4efb-b449-66faaae40a2e/Thanos|
|Infinity Mugen Team||8||8||9||http://www.infinityMugenTeam.com|
Each of the four versions are great. James' version has the Infinity Gauntlet and is the only version that has helpers: Marvel Supervillians like Onslaught, Magneto, and Juggernaut. He also has a move where he does multiple downward punches. Alucard's version does not have the Infinity Gauntlet so his moves are different. I like him best, especially the energy beams this character can hit. The MVC and MVC2 version are similar to one another. They have the same moves as the version of Thanos found in Capcom's Marvel Superheroes game. That is why I like them. I think the MVC2' s AI is the most aggressive. I think that if you have to choose only one, you should use Alucard's version. Here is the video playlist.