Ninja Collection is a spin off of Yami Shibai.
If you are not familiar with Yami Shibai, it's an episodic tv short (4 min per episode) about Japanese horror stories and has 10 seasons.
/anime/19383/theatre-of-darkness-yamishibai

Ninja collection follows yamishibai's format where we are watching a normal citizen find himself in an unlucky scary event.

One large con about the yami shibai series that is also in ninja collection is the horrible animation that seems like a powerpoint slideshow. Most of the characters don't even move their mouth's when they are talking and they keep reusing the same images. Generally, I don't mind the animation of a show but it's really bad here. So, if you care about animation this is not for you.

Ninja Collection is basically Yamishibai but with the addition of ninjas...or it should have been. Even though they had a cooler concept to work with they completely failed.
On first glance the show looks pretty promising. The cover looks cool and the description quite interesting from your typical yamishibai.

Tokyo: A city full of dreams and desires. Even today, there's a band of ninja passing down the old techniques and carrying out missions, hidden from the eyes of the public. Blending into the darkness of the city, slaying inhuman darkness... People call them the Tokeshu.

First of all, ninja collection is not scary at all. Yamishibai isn't great either but at least theres a variety of monsters, ghosts, zombies, ghouls etc and it's occasionally creepy and even manages to actually jumpscare you. Ninja collection totally threw all these things that made yamishibai right out of the window.

Regarding monsters, WHY IS ALMOST EVERY MONSTER THIS RED FUCKER

Honestly, who thought this red demon is actually scary in the studio? Not only that, but they are in the most episodes. Yamishibai always has a huge variety of monsters, but this show mostly has this unscary and boring looking demon.

Here are some examples of yamishibai's actually good monsters

I feel like everyone agrees that these are so much better than this red guy above

About the ninja group now.
They get absolutely no character development. Actually I'm asking for too much. THEY DON'T EVEN GET NAMES! They just show up mostly for some seconds in the end to kill the monster and that's it but in the same time that completely ruins yamishibai's theme where in the end there is some jumpscare or something like that. It takes the thrill away.
The characters in yamishibai were always caught by the monster in the end and we were getting jumpscared but in ninja collection not only do we know that the character is gonna be safe and sound but the monster gets killed with no chance to scare us.
Not to mention the ninjas just one hit the monsters so there aren't any interesting ninja-monster action
Except one time where they actually fought

Not that it was good ofc

And in some episodes they tried to hit us with a plot twist. The protagonist of the episode you were following was actually the monster, even though they were acting and thinking like a normal human before. Wow! Okay, maybe one time I didn't actually expect it but why do it so many times?

One thing that I personally think would have worked better in this ninja spin off was to see the ninja organization side of things instead of a random citizen's. I believe that would have been so much cooler.

Well, this was my review which is actually my first review ever so I hope I did alright. I really wanted to talk about a trash show so I did this.

My favorite episode was probably episode 11 where

Spoiler, click to view

the ninja was a monster

Overall: 3/10
I don't recommend this to no one, not even Yamishibai fans.
Cya