This special definitely draws from Naruto's negative experiences when he tried impersonating Sasuke in an attempt to steal a kiss from Sakura. The comedy focuses on the inability to use the bathroom during a special event, but is honestly not for those who would label Captain Underpants as crass simply because much of the humor is related to - well - the bathroom and the bodily functions which go along with this. In fact, people are quick to label any work which uses bathroom humor as immature. There is nothing immature about this special, not even the ending. In fact, the ending makes sense given theplot and Naruto's personality. Of course, there are those who may not like the fact Naruto is made to look bad at the end, yet this ignores the fact Naruto's done plenty to make himself look bad already. In this particular case, it's an incident which is way outside of Naruto's control. Of course, there is the fact nobody ever followed up on Naruto's plight - meaning the aftermath - given that this was only a special, one which tends to get forgotten.

It's definitely worth the watch, if one can get past thinking all bathroom humor is crass, or even that filler never adds anything