What is the worst ending in anime?

I have problem on some anime endings that I believe they could have did more. Which anime do you feel they could have did more for it?

Soul Eater. They did all of that training and stuff and then at the end, Maka saved herself with just the pureness of her soul. I was expecting a big battle, which I mostly got, but the one on one should have been better.

The Big O. I STILL don't know or understand what the hell happened. The Big Reset Button was just pressed. At least I know everyone melted in Evangelion. At least that's what I think happened.

I think the Air Gear was really bad it was like just a teaser for the manga so you would have to read it to get the whole story.

I think the Air Gear was really bad it was like just a teaser for the manga so you would have to read it to get the whole story.

Haha I haven't really read or watch those but those are on my to watch/read list so don't spoil it >______< just kidding

I have a huge problem with the Soul Eater anime ending. The anime was so good, but the ending literally KILLED it. I was so pissed off..

there's been quite of few animes that i just hated the endings. I think harem adaptations have some of the worst since alot of them just do Open endings, which imo are a waste. As for a recent show that i really enjoyed but they totally botched the ending for i would say is Guilty Crown. That show was pretty good for the 1st half, and should have just ended at ep 12/13. The last half i think almost makes it unwatchable.

Demonbane... to be far that was not a good anime(even tho i really wanted it to be) but the ending was just really bad... it was horribly written

I'm gonna be the guy to drop the obvious one, totally hated the ending to School Days, my face just dropped like a brick at the end, it was a total wtf moment imo, no spoilers, but hey ........nice boat.