Ubisoft confirmed that Watch_Dogs won’t have any cheat-codes. according to the creative-director Jonathan Morin.
But its arch-rival, GTA V supports numerous cheat-codes that enable players to do a lot of crazy stuffs like spawning units, changing weather, floating in air, etc.
Frankly speaking, Watch_Dogs does not seem to be a type for cheat codes. Who would actually expect cheat codes for an action-oriented game like this? As far as we know most of the Ubisoft games don’t have any cheats. Well, GTA V is GTA V where one would definitely anticipate humor and sarcasm.
Personally as a gamer, I favor Watch_Dogs for not having any of those crazy codes because it feels to be genuine that way.