Our marketing folks would say the characters are more responsive and lifelike than ever before; our internal dev notes described it as "the characters won't bump or get stuck into objects in tight spaces".
The perennial problem with marketing language seems to be that everything needs to be reworded to "make sense" to someone who doesn't know anything about the actual product that is being marketed.
Do you need to understand graphics programming to understand "The character won't get stuck in tight places"? They seem to do this because that sounds way more practical and way less magical than "The character is more lifelike!"
Example:
Our marketing folks would say the characters are more responsive and lifelike than ever before; our internal dev notes described it as "the characters won't bump or get stuck into objects in tight spaces".