The fastest completion of target practise on Legend of Zelda: Majora”s Mask (Nintendo, 2000) is 24.58 seconds, achieved by Cameron Jones (USA) in Issaquah, Washington, USA, on 10 September 2011.
This record was broken on the Guinness World Record Challengers site (Challengers’ tag: theultimate1 ): http://challengers.guinnessworldrecords.com/challenges/52-fastest-completion-of-target-practise-on-legend-of-zelda-majoras-mask-nintendo-64