I see everyone thinks this movie is a "masterpiece", but I know 6 cons based on a YouTuber's review.
1) The background is very blurry.
2) The camera is constantly moving, without giving anyone a break.
3) All of the movement is very unnatural.
4) The all the characters are very creepy and have a plastic kind of texture with awful CG.
5) The moral is so bad.
6) The jokes are dull.
I bet that at least 80% of the budget went into the cover.
Despite this, I really like the music.