Event Surprise Quests Vs. Ashura's Guide

The party and surprise quests (1 apple and 2 pumpkins) will keep appearing (copies of them). You are supposed to do them untill the are over.

For example, "Visitor in the Dark Night", the surprise quest you fight Hassan, will have a total of 9 times. And yes, each time you do each one, it drops X2 Pumpkins, also lots of different mats.

Later on, new Surprise quests will be add, all having multiple copies of themselves popping up around the event map, after some time (the total of copies does not appear all at the same time). The copies are meant to be done again and again, as they all drop things by themselves (including the guaranteed X2 pumpkins), like actual separated quests.

The list for Surprise (how many times they will repeat, and that you will do to get event currency):
Visitor in the Dark Night (x9)
Visitor in the Rain (x14)
Visitor of the Long Night (x13)
Visitor of the Perpetual Night (x15)
Visitor on a Misty Moonlit Night (x15)
Visitors Through the Night (x1, this give 1 crystalized lore instead of 100% X2 Pumpkins)

Same for Party (apple ones), you will have to repeat them:
Heroic Party (x5)
Mysterious Party (x6)
Lunatic Party (x6)
Doppel Party (x6)
Ryal Party (x7)
(AKA you will get 30 Golden Apples, if you do all the quest!)

By the way, Party quests ONLY drop bats, so, only start doing those after getting some Maid In Halloweens (that you can up to buy up to 3 times with the pumpkins -the 100% certain drops of the Surprise quests).

TL;DR: do SURPRISE first, ad save PARTY ones for a later on, after getting TamamoCat CEs. Equip them, and Halloween Arragement (if you have) for Party. For surprise, go for a mix of CEs, as everything drops.