You can download the whole soundtrack below:

Download in MP3 Format: http://cid-b6fde7d725fe0bd0.office.live.com/browse.aspx/.Public/mp3
Download in OGG Format: http://cid-b6fde7d725fe0bd0.office.live.com/self.aspx/.Public/scribblenauts-ogg.zip
Download in WAV Format: http://cid-b6fde7d725fe0bd0.office.live.com/browse.aspx/.Public/wav

Instructions Select a link and download all the files (there may be up to 5). Decompress them. Windows can extract .ZIP files by itself, to decompress 7Z files go to http://wobzip.org/.
More Detailed Instructions Click on a link. Then, click on a file. After that, click on the icon in the middle of the page that resembles the file. Download that file. Repeat for any other remaining files, then extract them. See Instructions and Need help decompressing that file?
Please be patient when downloading the files. Each one is ~50MB each.

Which one should I download? I recommend downloading the mp3 format because it is recognized by virtually every music playing software.

Are these files safe? Yes, they are. Music files, unless disguised as executable files, cannot harm you or your computer in any way unless you turn up the volume too loud.

Can't play that music file? Get VLC, an awesome music player that can play almost any form of music. It's free, it's open source, and it's safe (kuyanatan tested!). http://www.videolan.org/vlc/
Need help decompressing those files? Go here, http://wobzip.org/.