How do you erase certain parts of the memory?

[eliasfrost]

This might be possible, but I highly doubt that it's going to be efficient in any way. You simply can't remove all traces of a memory. For this to work, I assume the patient need to be under a hypnosic state during the process? I mean, he needs to be hypnotized _while_ playing the game?

Although I have no doubts that you can lure and/or remove parts of your memory, there are certain parts that simply can't be removed, things controlled by instinct, like walking. I've heard about people with amnesia, they usually forget the name of people but not(for instance) what a fork is and how to use it. Is there some kind of mystery behind this?