Bootleg Zombrex is a collectible exclusive to Dead Rising 3: The Last Agent. There are twenty of these collectibles spread throughout Los Perdidos. There are five in each district. Brad Park can collect these for additional PP, as well as for the Bootleg Operator achievement. The collectible will start showing up on the map after Brad has picked up the storyline related Bootleg Zombrex in Happy Good Mart during Retrieve the Bootlegged Zombrex and returned it to Cora.