Scratch

Ive finished scrolling for my game, almost done, just doing shooting now, but there is a problem, This is what happens:

The enemy appears at it's starting location, walks towards player. When I shoot, The enemy does his death costume sequence thing. then disappears, then doesnt shop up from then on.

This is what should happen:

The enemy appears at it's starting location, walks towards player. When I shoot, The enemy does his death costume sequence thing. then disappears, then reappears at it's starting location, then this keeps repeating.

can someone show me a script that works?