Please just put the name of the anime, if you want to add any details about it or something that may contain spoilers make sure to hide it. Thanks guys!
Mod Edit: and manga.
Kill la Kill
One Episode Changed Everything everything revealed during the school festival
I'm not sure if this counts exactly since it was like a "cliffhanger", but the final episode of the Re:Zero Director's Cut was something else. I don't have much anime with good twists sadly, so the only other conventional twist I could go with would be the twists from Danganronpa: The Animation. I much, much preferred them in the game, but the spirit is there in the anime so I'm gonna hecking count it!
ReZero kara Hajimeru Isekai Seikatsu
Danganronpa Kibou no Gakuen to Zetsubou no Koukousei The Animation
Kingdom
Kingdom Season 2
Kingdom Season 3
It has a few. It's my favorite anime rn so I recommend it(if you can get past the first season animation)
Kidou Senshi Gundam Tekketsu no Orphans 2
Code Geass Hangyaku no Lelouch R2
In both cases, I like the unexpected endings
SCHOOLLIVE
Finish the first episode
Monster, but read the manga...
Monster
can it be a manga?
if so i would recommend
20th Century Boys
and the sequel
21st Century Boys
if the answer is no i would recommend
ReLIFE
(again lol)
and
https://anilist.co/anime/6547/Angel-Beats/v
Charlotte
jun maeda's animes are full of plot twists
Kill la Kill has some great plot twists
Kill la Kill
Attack on Titan Final Season By far (all of it)
And SteinsGate is a second