Talk:Dark Matter Sword/@comment-24.5.97.36-20121113224207/@comment-5574324-20121113224530

The default button is V, I believe. Holding shift while pressing the charge button will uncharge it. To actually use it, I think the default button is R (I rebound most of my keys, so I'm not sure if this is it or not). It's listed in your Controls menu though.