Thread:Number494/@comment-25591094-20141104130823/@comment-25320594-20141105023721

There hasn't yet been any proof of the mackarel's existance in the show. the only mention at all was in a disney XD game, and those can't exactly be credited as canon. We don't even know if the whole "holy mackarel" thing isn't just a joke, a tease about the secret society mentioned in rumble's revenge. (though i don't know which one came out first, if mystery shack mystery did than this makes no sense) Also, the mentioning of the secret society happened when season one was still airing. If foreshadowing an episode in season two while in the middle of season one isn't enough buildup, i don't know what is.

so in short: no, I don't.