They didn't make it specifically for the DVD, it had been in the Broadway show before that.
Its addition to the animated film was very unpopular, and now the song has even been cut from the musical.
Also, it's a lame song.
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(10:17:09 PM) Ed Bellis: i think pac-man just keeps repeating, for instance
(10:17:26 PM) ertyu: ya well tell that to billy michtlle