From: starphaze | Posted: 10/25/2011 9:44:50 AM | #003 Yeah, you can only get him after Raz is dead, and before you confront the Joker/Clayface...
The window of opportunity is much bigger than that. I got that Easter Egg after going down to that section the first time, finishing whatever story mission was down there (I forget what it was), then coming back that way because I wanted to exit in that area (only to find the gate locked, as shown in the video). I assume you can also do this on your way down too. But yeah, there's a lot of opportunity to do this.
"I dreamt that I was a 'Genie-Firefighter'! I fought fires and granted wishes!"
I thought I missed out on unlocking Croc's BIO as well, but I just did this last night while looking for all the Tophies and Riddles in the SUBWAY...Take the big whole to enter to the Souteast Entrance, the same place Killer Croc Easter Egg is...Not exactly sure, but there is a place inside where you have to gadget across a long gap, and then you will eventually land on an area where you can use explosive gel on the bottom floor. Once it breaks, you will end up in Killer Crocs bedroom...And what you did is SCAN Croc's collar to unlock the Riddle. This will unlock his BIO as well.
PSN ID/GameTag: CTaffy919 Currently Playing: Batman Arkham City (PS3) & Folklore (PS3)