I'll do my best but perhaps this is one of those instances where it is better to show than tell.
From what I understood while playing I think the instructions might read like:
"Each step you take is recorded up to 3 moves move. After the 3rd move the recorder steps are played back automatically moving you. This movement is played back in reverse moving you opposite to how you move." (Or maybe I misunderstood the last part and it simply paybacks back your last 3 moving from last to first)
Again, it might just be easier to explain as you play, which you do just needs different words, and emphasize that you automatically move in a given direction depending on how you moved while the moves where being recorded.
Hope that helps