Corrected entry: During the main lightcycle sequence, there's the part where Ram and Tron kill the last blue bike by converging; this is not possible for them to do (the bikes don't even turn, just magically move closer). Also, there's no way for them to have gone through the crack in the wall at the same time (and they can't go in separately, because of the jet trails).
Phil C.
27th Aug 2003
Correction: It most certainly is possible, as the jet walls left behind by Tron and Ram's cycles DO converge at 90 degree angles. The bikes simply turned toward each other and then parallel to each other too quickly to be seen by the naked eye. As for the crack in the wall, it is easily wide enough for both cycles to enter at the same time, since that is exactly what they do.
Phil C.