First of all the theme song is trying way to hard to be catchy and it just dose not sound good at all. And second this is just a blatant Rip off of FOP. The premise is similar in that the twins are able to change whatever they want to better suit their petty needs at the time. In FOP the fairy's have much more possibilities to in their problem fixing magic but in this Rip off it's strangely more restricted, Timmy could not only replace certain people but make things vanish, teleport, go back and forth in time, get super-powers, transform and more. Here it's just replacing people and you think maybe they could replace objects but no just people. FOP had a consistent moral of "just because you can change something, dose not mean you should," sure it popped up a lot their but their were other morals and some episodes didn't have morals and where still funny. The Replacements however practically repeats the moral almost every episode and it gets dull real quick, As well as the humor and art style not being anything special.