It's a fantasy role-playing game.

DM: You are Percival de Rolo, a human gunslinger . You are the member of the famous group of adventurers. Previously,  Then continuing to follow where this route led you, upward, hopefully towards the underbelly of the city of Thar Amphala. You uncovered a mostly cleaned out vault and did battle with some undead trolls that immediately rushed in and attacked you.
DM: All right. You glance up and get just beyond where Keyleth is, pushing past. You have five more feet you can move if you want.
Player: Well, I'm coming up the hole. I take a look. Oh, sweet god. I'm going to take a shot at the guy I see up on the table there.
DM: Okay, go for it.
Player: That's better.
DM: Which guy?
Player: Yeah, the gray. And that's 28?
DM: Okay. (gunshot) You fire a shot and watch as it detonates against some sort of invisible wall that you didn't see was there before, scattering helplessly against the space in the air.
