Hmm... good point... I remember the Batman game for Sega Genesis, I was awful at it. I couldn't figure out this clue that was the next step, never figured it out. I think the clue was something along the lines of:
"Credit is given where credit is due ... if you (something I can't remember) you'll end up here too..."
It was a Riddler Clue .... hmm..
Now, Playing infamous (which is quite fun), I haven't been stumped at all (except once when I thought I had to climb up when there was a door that I was missing

)
In ten years, I won't remember the doors, but more than ten years ago I got the Genesis with batman... so ... who really knows *shrug*