There’s no telling if he can approximate that live, but it is good to know that all the sounds are as they were recorded into his computer mic. The more viral videos out there showing everyman’s successful a cappella efforts, the better.
And it’s hardly new, but a little a cappella Nintendo theme is never a bad thing:
http://gprime.net/video.php/nintendothemesacappella
Amazingly, it’s number 8 when you search for “a cappella” in Google, even above the Wikipedia listing (!), which means it continues to be wildly popular.
You know how sometimes on a CD there’s an a cappella version of one of the songs, which is often just the vocal track stripped out, usually there so that remixers can play with the track?
Check this out: http://www.acapella-heaven.tk/
It appears some guy in Turkey has compiled a library of hundreds of these files.
And last but not least, although it has nothing to do with a cappella:
http://www.acapella.de/german/ (click on “Spharon”)
If you’re looking for speakers with a horn the size of a hot tub, call the Acapella people.
Click on the wrench in the upper left-hand corner to see what else you can do.