racetrack (c) 2008 thomas oppl (toppl@fh-sbg.ac.at)
Arena Mods by Pixel_2ACF3 (Wayne Dennis)
Soccer field by Funto (Lionel Fuentes)
licensed under CC BY-SA 3.0
http://creativecommons.org/licenses/by-sa/3.0/


soccer ball by STKRudy85
http://opengameart.org/content/football-balloon
released under CC 0