Nekketsu Kouha Kunio-kun: Bangai Rantou Hen English translation
熱血硬派くにおくん 番外乱闘編 · Hot-Blooded Tough Guy Kunio: Bangai Rantou Hen
Ice Translations' English patch for the Japanese Kunio-kun version of the Game Boy brawler the West knew as Double Dragon II.
What's translated
Ice Translations' patch translates the game's Japanese text into English while keeping everything that makes this the Kunio-kun original: Kunio and his crew instead of the Lee brothers, and the original story and music rather than the reworked Western release.
Why it matters
Western players knew this game only as Double Dragon II on the Game Boy, a version where the characters, script and soundtrack were changed to fit that series. The patch lets you play Technos's original in English. It was released in December 2000 as version 0.99 and is listed as fully translated.
Playing it
The patch is applied to your own copy of the Japanese Game Boy game, following the instructions in its readme. The patch's database page linked here has the details.