Phineas and Ferb Badfic.

At first glance:

On one hand I am instantly leery of all Transdimensional Hopping if only that I know (and have perpetrated) the worst of it.

On the other hand the absurdity might be acceptable, because a person from an alternate universe sounds pretty old-hat for the cartoon series itself. We're speaking for a tv show that has a mad scientist lament how he was forced to stand as a Garden Gnome all his childhood and find rivalry in a super-spy platypus. In this same cartoon is displayed frequently acts such as as painting an entire continent, and somehow producing a sizable coastline in one's backyard-- I don't know if interdimensional hopping is all too out of place. This might be a rare case where tv show characters somehow ending up in an alternate dimension where they're... a tv show... might be NORMAL for the universe.

But, on yet another hand it all comes down to the execution. One thing that makes me instantly skeptical of this fic is that the girl is already obsessed with P and H from the get-go-- that usually never ends well and is codename for Author Surrogate rather than just a passing original character.

Gonna need more hands to be on.

I find that this kind of okay-written Transdimensional Hopping or Self Insertion story is very typical of late-stage Suethors who have written a fair bit and realized they might be writing Mary Sues. Usually around 16 or so, possibly 17, they deliberately write a fairly normal, average character in the beginning... but if they can sustain that character remains to be seen.

I don't know about this story though-- I need to read it when I'm not at work. If the girl exists solely to have fun random wacky lulzfest hijinks, not to make a story, then she'll go the way of Mary Sue pretty fast.

But then again, the show itself is mostly fun wacky lulz pulled off well, so... I don't really know. :|