The following info comes from a Polygon interview with Batman: Arkham Origins creative director Eric Holmes.

"Batman has been around for a long time, and people have their favorite variants of Batman. It could be a particular narrative arc or a particular artist's look, or something like that, and we really wanted to offer people the option to be their Batman. It's visually refreshing, it's something we're very proud of. It really puts a very different feeling in it, if you're one of those many different incarnations of him.

For example, the [whackiest] one has to be the Adam West costume. But when you put it on [Batman] it's not Adam West, it's our character wearing the costume from the TV show. It adds a little bit of goofiness to it, which is fun."

Shock Gloves

- send bolts of electricity through any enemy

- Batman also has a tablet-style device that lets him deactivate bombs