the loading zone isn't loaded when you enter delfino plaza, you can clip into corona's entrance using rocket storage, but the loading zone isn't active until delfino plaza is flooded.

In short, you can't.

Is there an earlier delfino plaza state, other than the flooded one, that has it loaded?

omg maybe it's possible.... I will test right now and if it's true I can beat WR by an hour :D !

@akane174 It's not. If it was, it would have been done by now.

it definitely is not possible, and i only know that because i have done it a million times lol

yes it is :)

mfw