UK VHS versions of this film were cut by 5 seconds to remove all shots of shuriken (ninja throwing stars), as these were on the no-no weapons list of the British Board of Film Classification (BBFC) at the time. When resubmitted to the BBFC in 2004 under revised guidelines in which shuriken were no longer a problem, the film was passed uncut for the UK DVD release.
There are at least two different dubs that have been released in the US, and the two version sometimes conflict dramatically in character motivations and plot details.