User blog comment:Explorer 767/More P&F Song Parodies!/@comment-1024726-20091117203536

Midas and Herb, as in the article, build amazing things like P&F, except with slight variations (since they're parodies).

The only part of the show that is REALLY different is the Perry vs. Doofenshmirtz parody. In M&H, Perry the Puffle would be a mercenary agent hired by the MMK to stop Explorer from pranking Mabel.