To prevent Error trapper.  Tsunami is a rocket coaster and has been made using track merges.  It has also had its train type changed, therefore it is very unreliable.  When opening Tsunami, monitor it carefully, as if it has a safety cut out it might not make the top hat inversion, and reverse on the merged track, causing an error trapper.  If this occurs, reset the ride before the ride reverses on the top hat. Thanks.