Yes. If his weener and bladder are intact, and his robolegs allow him to stand over a toilet, there's no reason he can't dispense justice.
That's not Robocop. That's VaderCop, or ArmorCop. The only biological parts left of Robocop are his face and part of his brain (mostly blown out by Red Foreman!). But this new imposter is about 80% intact. And that damned gloveless hand is pi55ing me off. Screw that noise, man.
While it is different from the poster, it's the same gun he's holding in this picture:
http://www.therpf.com/attachments/f9/robocop-poster-df-15757.jpg-231658d1379113541
By the look of the trailer he has two guns, the pistol in his right leg and the submachine gun thing in his left. Right at the end of the trailer it shows it expanding out of his leg holster
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