Around 5 hours 56 minutes to beat. Years ago I got stuck on the final stage which is an escape sequence from the death star. In the video I explain in detail how I beat it. Here are my notes for the segment which highlights all the main tips:
"1 hour 47 minutes to beat final stage escape sequence
For that sequence here are my main tips:
Avoid using up and down buttons and focus on adjusting left and right only
hold the B button to remain at full speed always
For left and right adjustments mainly tap the direction briefly to avoid the obstacles that jut out to the left and right in the narrow corridor sections, it only takes a tap to correct most of the time
For the final hallway look for the grey brick pattern collumns. Any time you see one tap the opposite direction they appear on, one time, do this until you reach the end
ROTATE IN THE FOLLOWING DIRECTIONS AND ORDER AS EACH FORCED ROTATION OBSTACLE APPEARS
RIGHT
LEFT
LEFT
LEFT
LONG TUNNEL
LEFT
RIGHT
RIGHT
RIGHT
FINAL TUNNEL (USE THE GREY BRICK PILLARS AS A STEERING GUIDE. WHEN YOU SEE ONE TAP THE OPPOSITE DIRECTION BRIEFLY AND RELEASE) "