Goin' Downtown is another brilliant adventure game that never saw a retail release outside Germany. Even the official English version only had the text translated in English, with all the voices remaining in German.
This patch converts the German retail release of the game to the English one. Obviously all voices remain in German. Like always I bought my copy from the German Amazon online store.
To install the patch, unpack the contents of the archive and run the batch file. It will try to change a reference in your registry, so choose YES when asked to add the information to the registry.
I strongly suggest you download and apply the latest official patch that upgrades the game to version 1.1. You can also find that patch here.