All time lowest prices for these three games.
Note that the sale for Armello ends on 22 January 2021 and for The Great Perhaps on 14 February 2021.
The Great Perhaps: https://ec.nintendo.com/AU/en/titles/70010000032162
Yet another zombie defense HD: https://ec.nintendo.com/AU/en/titles/70010000017786
Enjoy!
I have looked into Armello in the past (on PC) and decided against it as reviews at the time stated most of the game boiled down to dice roll RNG.