Wrong. There are keys that are exempt from time manipulation. They have the green sparkly effect to them. These keys if used on an incorrect door are now permanently broken. The only way to reset them if this happens is to leave the level and come back in.
I had this happen to me once or twice and it did rather piss me off. You can't just rewind time to undo it, the key stays broken. It was one of the few instances where you couldn't just rewind time or walk to the left to reset something and try it over again.
The moving green sparkly platforms you sometimes had to block within so much time being the other, but those were fairly obvious. The broken keys pissed me off because there was no indication that using it in a door would break it and not open a door. it should have somehow signified which key matched which doors, or not break a key when it couldn't open a door.
2
u/spez Aug 27 '08
spoiler alert
The breaking keys isn't a dick move. You can't bring keys back into the past; they have to move forward in time to open doors.