Well, this is the kind of stuff I've been doing (and still am) before I started getting into flash and stuff.
Yepp. That's Mario... walking into an exploding mushroom.
Yepp, those are spaceships from Lylat Wars in Kokiri forrest.
Yepp, all that stuff is hacked, some of it even by myself.
...and
NO, it's NOT a ROM.I never even
use ROMs, not even for hacking.
Xploder64 is the magic word in this case.

I think I'll write more stuff in this author's comment some other day, depending on the comments posted or somethign.
If I got you interested what the f*ck all this kind of stuff is:
Beginner's tutorial:
[link]screenshotgallery of hacked stuff:
[link]And, most important:
more movies like this on moi website, www . beyond-cheating . de: [link]Well, now you know what I ment with "the next pie you touch might explode for no reason" back in the preloader of the roger-tribute-flashmovie.

Oh! And here are the
codes to enter for making this happen to
your Super Mario 64 as well.
definitelly working
european version of the codes used in this movie:
[link]US-version of the codes, but most of them haven't been tested yet:
[link]If you find out some of the codes to be working or not, please inform me, so I know if they actually work or not.
I'm especially interested in codes where it says "by UltramasterBDJ, ported by Master", since those are the codes I actually made myself, which then were ported by a friend of mine.(some of these codes might however NOT work on emulators!! Especially the code to free the Chain Chomp does NOT work on emulators, but ONLY on a real Nintendo64)
EDIT: Turns out that credit for the music in the "Mario vs Sonic" scene does not belong to Chi-o (or whatever the name was), he/she seems to have stolen it and put up on the Newgrounds Audio portal. So here's the real deal: [link]