How do you beat riddler's electric shock robots?

[Bluman]

I found them on a roof guarding one of Riddler's Green Question Marks. All you have to do is throw a batarang at it. But the bots won't go down. These electric ones just keep shocking me everytime I hit them and I can't take them down. They glow some type of red or orange. How do you take them down?

[EbonHawk]

REC gun to lock one or two in place for a couple of seconds, then grappling hook another and slam to the ground. The freeze blast grenade works too, I think, but you don't get it till later in the game. I just found it lying in the area with all the special prison cells. I can't remember the names of a lot of the places (it's not at GCPD though), it's the one with the cells with the Batcomputer nearby... Is that in Panessa Studios as well?

Anyway, you have to use the grappling hook and dodge a lot to beat those. They take a few hits maybe 4 or 5 cycles of knocking them to the ground to get them to stay down. I think you can use the takedowns on them as well, the moves like the ground takedown to finish them off permanently. They're not easy, but not too hard, once you get the hang of it,

[Elleron]

You can target them all with the voice synthesizer and order them to move to the edge of the rooftop; the Batmobile's 60mm cannon makes short work of them.

[Andares]

Actually I used another technique for those.
You first beat the non-electrical one (3 or 4) then you throw a batarang on the Riddler Question Mark and the robots will switch to non-electrical.

Hope that will help.

[EbonHawk]

So many ways, so many possibilities..I'll probably never know 'em all.

[Parabola]

Originally posted by Slumper:

Actually I used another technique for those.
You first beat the non-electrical one (3 or 4) then you throw a batarang on the Riddler Question Mark and the robots will switch to non-electrical.

Hope that will help.

This guy!

[knowise]

Does anyone know how to pick up the trophy on the wall after the fight? It is too high up, flying straight into it is not working.

[EbonHawk]

Originally posted by knowise:

Does anyone know how to pick up the trophy on the wall after the fight? It is too high up, flying straight into it is not working.

Batclaw? It's been a long while..