To make this game even more awesome, there are so many easter eggs and cameo appearances. There's a reference to the Teenage Mutant Ninja Turtles. There's a quest you can do for Tannis where you deliver pizza to some mutants down in the sewers. Once I got there, I saw the names for the enemies I was fighting when I finally realized it. There names being Lee, Dan, Mick, and Ralph. Once you finish them off, the quest is technically over, but there's more. You can head into a room. Once there, you have to light up these four lights, when done, a mini-boss you could call it comes out named Flinter, hence a reference to Master Splinter.