Hellboy was a little bit of a surprise for Injustice 2 but a nice addition. There's a reboot of the film currently going on so his popularity is sure to rise again once the movie is out.
In November, Hellboy will be part of the second fighter pack for Injustice 2 and today, NetherRealms released a video of some of his moves.
As you can see, his Good Samaritan gun comes into play a lot as well as his Right Hand of Doom. Overall, he looks and sounds great and should be a fun part of the roster.