And a Rogue Trooper / Dredd crossover in one of the specialsit was very much shoehorned in, mind. Can't recall Robo-Hunter being in any Dredd stories.
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Smallbrainfield,
Tue 21 Aug 2012, 13:37,
archived)
Except Walter the robot appeared in both, didn't he?
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smaggers Like a gibbon on helium,
Tue 21 Aug 2012, 16:16,
archived)