Ditto SyX
There is a scene French release of Blueberry in TOSEC, just look into TOSEC/games folder. The controls are buggy as hell though. When the party encounters the horse-back Indians in the desert, well, it's stuck there
. The sequence loops, and virtually no button / key press / mouse click shall I could think of allows the player to fire a single bullet. I've zoned said ADF if you want to give it a try (a few exclamations belonging to the characters haven't been translated from the German version).
In case a slave ends up being coded, I guess an option to skip the shooting sequences could come in handy (not the nicest thing to do to shoot down natives anyway).