This was pretty much horrible. I hate toilet humor, and that's pretty much all this was. Naruto needing to go to the bathroom but not being able to because he's in a competition.
Granted, some of the cameos were cool, such as the 4th Hokage, and Hinata was as sweet and awesome as ever, but... It was the most pointless short ever.
How many times can you say that "I've watched an anime about a guy taking a shit"?
It's a quick way to get your mind off things, this doesn't actually have anything to do with naruto universe, it could've been ichigo or anyone else, it's just a short harmless episode that didn't put itself in the official episode list to annoy people, as all fillers do.
Anime in 200 Words: Naruto: Konoha Sports Festival
Premise: Poop humor. Remember that early episode when Naruto’s expired milk costs him a kiss with Sakura? If you loved it, this special is for you. Oh yeah, and there’s a ninjutsu-fueled track and field day.
Characters: The genin from the Leaf Village plus the three sand genin. I have no clue why the sand ninja are at an event for Leaf Village ninja, but they are.
Audience: People who watched Naruto, though they don’t need to be further than the Chunin Exams in order to know everyone.
Plausibility: The sports festival is over the top. I can’t believe that people would actually force Naruto to compete in these events without ever letting him take care of a basic human need. Just saying.
Perks: Some of the events are entertaining, and if you like watching Naruto suffer or seeing him come close to his goal then watch it torn away, then you’ll enjoy how many different things happen to the poor boy in this.
Overall: This special is 60% poop humor, 40% ninjas doing cool stuff. Your gut reaction to that balance should tell you if you’ll laugh or not. Good luck!