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Grandpa Mori must return to Japan and present a ceremonial dagger he won fifty years ago to the winner of a ninja tournament, and he asks his grandsons Rocky, Colt and Tum Tum to accompany him. The dagger, Grandpa confides, is also the key to a secret cave of gold, which is why his nemesis of a half century ago and a trio of spaced-out heavy metal rockers are in hot pursuit.
| Genres: |
Action/Adventure and Sequel |
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| Running Time: |
1 hr. 39 min. |
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| MPAA Rating: |
PG |
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| Distributors: |
TriStar Pictures
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| U.S. Box Office: |
$10,145,262 |
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In Theaters 
