I too used this, and more generally credit Neopets as a source of a lot motivations to learn by solving interesting problems. I reproduced a couple of the site'

I too used this, and more generally credit Neopets as a source of a lot motivations to learn by solving interesting problems. I reproduced a couple of the site's games in my first couple high school programming classes, and then eventually had a minimal logic but very reliable "Battledome" fighting script using autohotkey partway through undergrad. That autohotkey experience was helpful senior year in very quickly automating data collection from a non-automatable program for estimating atmospheric radiation dispersal.