Why is there a line about doping in a Mario Tennis game lol

This reminded me of those Super Mario Galaxy trading cards that were sold for a little while. They didn't really have any wacky art it was just renders

I just remembered a video game I used to play when I was a young child based on the mediocre childrens film Hop. Why the hell was there a twin stick shooter on the DS based on it?? You don't even play as the bunny. They would put anything on a DS cartridge and people would buy it.