After their victory, the princes hid the medallions to prevent them from ever being used for evil.
9 seconds sound clip from the Double Dragon (1994) movie soundboard.
You can hear this line at 00:03:24 in the Blu-ray version of the movie.
Quote context
[...]
- This is the legend of the Double Dragon.
(In Chinese) Where's the medallion?
(In Chinese) They've cut out their tongues. -We'll never find it.
- The king knew that together his sons would emerge triumphant and return peace to the land.
- After their victory, the princes hid the medallions to prevent them from ever being used for evil.
- Afraid of a little aftershock? Don't be.
- Seven years ago, the quake was a trumpet's blow... heralded my arrival.
- Over the centuries, many lives have been spent searching for the legendary Double Dragon.
[...]