He doesn't move too slow, he moves just fast enough.
If it jumps at you, you move.

How did you understand what he was saying?

He probably used a translation program.

I need one of those.

If you have your automatic rifle with you, all you need to do is blast the **** out of him until his shield breaks down, then he'll stop and get really pissed and rush at you, but you can easily take him down if you smack him with the end of your gun, or better yet blast him some more if you have another clip loaded. :-P

ack, needlers seem like a really bad wepaon but they rock!