Marvel Tokon: Fighting Souls launches soon, but if you’re impatient, then you can dive into the game’s open beta this weekend. While fighting game betas aren’t a novelty, the Marvel Tokon one is turning heads for the sheer amount of content that it’s offering to players, ranging from a stacked roster of playable characters to multiple modes that you can try out. For a closer look at how long it runs for and how you can get in, you can…