Sorry to point this out, but it's not only when Buu used his cookie attack that the "worldspawn" death message came up - it also happens during the Goku/Freiza fight. (3:13 secs in.)
Despite the fuzziness which you warned of, it looks awesome. I love the Goku ssj transformation - you got the golden lightning and pebbles flying everywhere, and the music's spot on
I haven't seen this mentioned, so I'm gonna slip it in here: what does Piccolo look like when he's transformed? When he Namek-fuses, he doesn't really change that much in looks...
Kudos to the guy who did the Trunks model. That's the first decent Trunks I've seen yet in a mod. And the rapid-hand attack is
very cool looking.