Bud Spencer and Terrence Hill are legendary!
The reason for this is mostly the german dubs. While the english versions of the movies are much less humorous, the german versions have a lot funnier text and wacky sound effects. You'll also notice that in the german version the characters just continue talking while they are beating up people.
I'm not sure whether they also changed the music from the original movies as I pretty much only watched the german dubbed movies.