Aloha!
May I recommend that when you complete all levels of a monthly challenge event that you are given the opportunity to select whichever monthly event pikmin you would like? This could reset each time you start the cycle over. I complete these monthly events sometimes 2 to 3 times over (a LOT of walking) and seem to keep missing 1 or 2 of the Pikmin for that month’s decor category. I understand the use of RNG (random number generation) to “randomize” the pikmin you get and that’s fine, but completing all levels is quite anticlimactic and to do it multiple times in a month and still miss pikmin for you collection is rather disappointing.
Thanks, and have a phenomenal day!
Maven