Don't BOTHER with Enigma/Riddler.
I collected all of Riddler's/Enigma's stuff in all of the other Arkham games. Yes, even Knight.
But Origins' take on these? HOOOOOOOOO BOY, THESE WERE SO MUCH WORK FOR SO LITTLE.
I mean, yeah, the first Riddler trophy was kinda cool - but remember when you'd actually either visually or audibly rough him up when you were done? Or both?
Nope, he just gets to continue being smug and not even say a single word after you put in all this effort. Yay.
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Game: Batman: Arkham Origins (2013)