phrase requests - Another term for "instant feedback"?

I'm looking for another term for "instant feedback". Something perhaps similar to how common the phrase "instant gratification" is used to mean instant results from an action.

For context, I'm trying to describe the way a video game's camera will capture and immediately display a player's movements on screen so they can react/correct their movements.

Answer

something responsive / very responsive

http://www.macmillandictionary.com/us/dictionary/american/responsive

http://www.thefreedictionary.com/responsive

http://www.merriam-webster.com/dictionary/responsive