It actually has not and judging by your avatar, you love halloween xD
Halloween is a fantastic event that is quite active. Think of the things you have to do as a cross between the harvest festival (running to houses) and christmas (learning about the villagers). I'll start explaining the gist of it. I'd rather not type an entire guide, though I could since it (the guide) is at my fingertips literally. Here we go.
October 1-7
During this week, the Pumpkin king will stop by your town and talk to you. You may or may not have to find him. He will tell you to purchase as much Halloween masks from Able's and as much candy as you can hold at Nook's. He'll tell you that you need to use the masks to scare villagers on halloween and candy will be used as prizes for the villagers.
October 1-30
During this month, talk to your villagers. You will learn about what they like and what they are scared of. There are 6 masks and they are scared of most of them, tough against others, and extremely scared of one. You want to find out which they are extremely scared of.
October 31 (6pm-12am) Time for the event!!
Most of your villagers will be in their houses. These are the ones you need to scare. The others will be wandering around your town looking for you. They will get you and they will trick you. They are all dressed as the Pumpkin King. Why? Because the Pumpkin King is also wandering around.
Your jobs:
- Halt the impostors
- Scare the indoor villagers
- Find the real Pumpkin King (difficult since the impostors and him reset when you enter/exit a building)
- Get lollipops
Lollipops?
Yes, lollipops. You can't buy these. You can get them from scaring the **** out of the indoor villagers. You give these to the real Pumpkin King and he'll give you a piece of the Horror set. The Horror set is unorderable, the pumpkin/halloween set is orderable and you can buy it at nook's during October.
The Pumpkin King loves lollipops and is more than happy to part with his Horror set for one.
He also likes candy but will only trade Halloween furniture, masks, or extra clothing. Rarely though, he will trade a horror piece for candy. It's very rare and it's a waste to keep trying candy for it.
You can get candy for failing to scare the villagers. They will play a game with you when you fail and will give you a candy if you win. If you choose the mask they are tough against, or you lose their game, they will do a trick on you. Tricks depend on the villagers.
The fake Kings outside will try to catch you and will play a game with you or just do a trick. Same rules -- you win, candy; not, trick.
It's an extremely fun event and I hope that everyone takes the 6 hours that it takes just playing as much as they can.