Mr. Freeze is motivated by different things. He doesn't really have that much of an axe to grind with Batman. Batman is an irritation and an impediment to him, not an enemy that he hates. He doesn't have the hatred that the Joker has for Batman.

When you're writing for a game - even if you're using very well known characters like Batman and his villains who lend themselves to many different interpretations - you have to keep in mind that you're writing for a different medium. Things are a bit more straightforward than it is for a feature film or a TV show.

To some degree, I don't think 'Batman' works in a completely modern city; I think Gotham has be reflective of his personality and those of his enemies.

Paul Dini Quotes