User blog comment:Black Spiderman/Phineas and Ferb: Across The Second Dimension/@comment-1758246-20100304064327

I'm wondering why they even need to fight this Doofenshmirtz from another dimension. I mean, how would Major Monogram even know of this other dimension and the Doof from it in order to give the mission. What would make things interesting is if the Perry they find isn't their Perry, but the one from the other dimension. Perhaps this Perry came to their dimension to ask for help. This would be much better than them finding the Perry from their dimension because there would be no point in erasing their memories.