Lucky Luke is based on a comic series created by Belgian cartoonist Maurice De Bevere. The series was very popular in Europe, so it's not surprising that it was adapted into a game.

TheKDX7, author of the other Lucky Luke run, collects all 60 stars throughout all 12 levels (including 5 hidden ones) and the 2 big hearts in the Saloon and Cheyenne Mountains levels in order to achieve 100% completion.