A team led by Noirin triumphed in the challenges involving a relay race with a cactus baton and rolling across 248 upturned plugs.
The contestants also had to take part in a barefoot skipping race on a track with strategically-placed toy building blocks and a sack race where the sack contained stinging nettles.
And there was a stomach-churning egg and spoon race involving eating Chinese delicacy 1,000-year-old eggs.
Noirin led her team mates Lisa, Rodrigo, Charlie and Dogface to victory, and their prize was a school disco.
Referee Marcus was also allowed to attend the party for correctly predicting that they would win.