You pull out a gun while your Fragsprite does some time thing to the imp.
Fragsprite seems like a silly name. He has nothing to do with grenades. But then, you remember that in certain cultures learning English, they don't have a distinction between "L" and "R". So, Frag would actually be "flag". It also seems to be Frog but with an A. Whatever it is, it just seems a bit silly.
You would later ask what he did to the imp, and he would say that he put the imp in a time sink, which slowed down the speed of the imp so that it wouldn't teleport when you shot it. You would later go on to see that move be heavily used elsewhere on your journey in the medium, as your imps have special frog powers.