For some reason, I think the Nutcracker version of the auditorium is a different interior.
*shrugs* It seems to differ from the normal one.
Anyway, Welcome to the forums NTAuthority.
As far as I can tell, The two bits you quoted appear to be something along the lines of Flags.
For more info, Check
http://tvtropes.org/pmwiki/pmwiki.php/Main/EventFlagFlags are very useful, But sometimes they may glitch, causing you to perhaps be unable to leave a building. This actually happened once during the Final Mission.
I had entered Harrington House, Beat up Derby and his goons, Ran upstairs to trash the conservatory, went back down and.. The exit marker was gone.
*shrugs* Only happened that one time though.
Anyway. So, unless I've completely misread what you said. It could be possible to make it snowy in "Endless Summer"? Interesting.
What about the snow just before the end of Chapter 2?
edit: @Steman: Hey, What's that last image? "EFLC [date here]"
Is that one of the interiors? Or did it get slipped in by accident?
Also, Such a strange looking door in the beta comic store.
I wonder if the beta comic stores were to be only seen in cutscenes?
Also. The F-Zero looking interior. Isn't that from one of the arcade games?
If Jimmy can appear there.. Does that mean the character you play as in that game could appear in the exterior world?
Anyway. @Again at Steman about chipped: Not entirely sure about the PS2 and 360, But the Wii can with the right homebrew app.
But this is bordering rule breakage(I think), And thus the right homebrew app won't be mentioned. Besides, I don't even recall what It's called.