To blueshift2: You would be looking for Avalon, the Mamoru Oshii joint Japanese/Polish production from 2000; Ash plays the game, in order to get to the last, secret level, but can???t tell what???s real (her dog, for instance, a Bassett Hound, often used as an Oshii proxy in his films, such as Ghost In The Shell 2; r whether she has actually left the game, such as in Code Breaker).