No offence, the humour was quite bland, particularly when Slender started talking...and I'm not saying that because of all the Slender spin offs that just seem to be popping from every corner of the internet. The animation by itself was alright, but I'm not going to rate it seriously because this isn't supposed to be serious...
On the other hand, I thought Slendy was cute in this one :3 I just want to pat him or something. Lols.