I have a version of this game for Playstation Portable which seem to have several bugs:

After moving to the right area of the network of rooms I can not get to the left side again, because there is no way back, there are two rooms which lead to that left side, but even with lift resets it is not possible to get through them.

Also it seems there is a map of rooms which is missing a 32th room.

The music rooms only give lift resets, but not a single password to pause robots.

Last thing is, when typing in your name for the highscore table, there is no letter 'Y' available.

Has anyone experienced the same problems?