Mario Kart Countdown is a fun chrome extension. it's a free extension , it has 782 active users since released its first version, it earns an average rating of 5.00 from 1 rated user, last update is 1642 days ago.
Need a 3, 2, 1 Countdown? Love playing Mario Kart? Then this extension is for you. Simply toggle the extension and hear the Mario Kart Countdown sounds start to play.
You could download the latest version crx file or older version files and install it.
English (United States).
100% user give 5-star rating. Read reviews of mario kart countdown
You could find more help information from mario kart countdown support page.
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Changed my life. Thx