The tuxracer ebuild should point to http://tuxracer.sourceforge.net/ not tuxracer.com which is a search phrase harvester. Also this ebuild has fetch restrictions on, tuxracer is a GPL game downloadable from sourceforge. Reproducible: Always Steps to Reproduce: 1. emerge games-arcade/tuxracer-demo 2. emerge --search tuxracer 3.
I removed games-arcade/tuxracer-demo from portage. We missed the removal of the demo package when tuxracer was removed last year. Thanks for the bug report.