I don't think it came from modarchive in the first place, it was added to the media repo in 2002. (https://sourceforge.net/p/supertuxkart/code/492/log/?path=/trunk/tuxkart/mods/Boom_boom_boom.mod) If it was, the terms might have been different 13 years ago, the terms from back then should be checked. (http://wayback.archive.org/web/2002*/http://www.modarchive.com/)
