This is an important thing to be implemented, because it's just too bad don't
have idea of how your weapon is going. And, you know, the red bar don't give a
good tip as well.

Please note that all weapons says how much damage them can deal, but never how
much was dealt, or how much HP the enemy droid have.
Adding like "x/y hp" on top of the robot appear a good idea to be put with this.