🍪 How event costumes work
Each monthly event has its own currency. In October 2026 it is Stained Glass Cookies. At the start of the event you get two sets of cookie missions:
- One set gives the event Mii costumes.
- The other lets you pick a reward each time you collect 600 cookies, such as Halloween Light and Halloween Treat seedlings.
- The missions disappear when the event ends, and leftover cookies have no use afterwards.
🧺 Where free players get cookies
- Event Challenge mission rewards.
- Planting flowers.
- Mystery Boxes from destroying Halloween Mushrooms.
Paid ways exist too: the Premium Event Pass (with a 500-cookie bonus if bought by Oct 7) and bundle packs. You don't need them for the plan below.
📊 How many cookies is "everything"?
Korean players added up both mission sets for October 2026 and got about 12,200 Stained Glass Cookies to finish them all. That's a player count for this month only. Other months use different cookies and amounts.
🍄 The free-to-play plan players use
- Skip ordinary mushrooms (fire, water and so on) and save your 3 free daily battles for medium or larger event mushrooms, which give Mystery Boxes.
- Players report around 80–100 cookies per box, sometimes 200.
- Keep planting flowers on walks, since that also drops cookies.
- Clear Event Challenge stages as you go.
- Planting uses a lot of nectar, so many players grow fruit to keep it topped up.
Most answers said this was enough to collect every costume without paying.
⚠️ The 12,200 total, box amounts and the free-to-play plan are player experience from the Korean community. Cookie sources and missions are from the official October 2026 event notice.
For the event itself, see our Halloween 2026 event guide. Thinking about paying after all? Read why players buy the Premium Event Pass on the last day.
A pure spot only gives one decor type, so your walks there aren't wasted.
🗺️ Open the pure spot map →Sources: Pikmin Bloom October 2026 Halloween event notice; player answers on the Naver Pikmin Bloom cafe (in Korean).