Hi All:
First, thanks for the quick replies!
Let me provide a bit more info based on some actual gameplay I just completed:
I started the game (on a PS4), and in the Backyard went to the sticker book. On the "Cool Stats" page, I saw that the collection was "2,859 / 8,211". I further looked at the Crazy Dave plants main page and saw that the plant sticker collection was "1,210 / 3,980", and the Zomboss main page showed the zombie sticker collection was "1,649 / 4,231".
At this point I played two multiplayer Turf Takeover games, with results as follows:
Game 1: Kernel Corn, Specialist, level 9, 5 KO's, plant victory
Game 2: Marine Biologist, Beginner, level 3 (moved to 6 over the course of the game), 21 KO's, Revive Master boast, plant victory
I then went back to the Backyard and looked at the sticker book. On the "Cool Stats" page, I saw that the collection was now "2,861 / 8,211" (an increase of 2). I further looked at the Crazy Dave plants main page and saw that the plant sticker collection was unchanged at "1,210 / 3,980", but the Zomboss main page showed that the zombie sticker collection increased by 2 to "1,651 / 4,231".
At no time did I visit the sticker shop or do any kind of sticker purchases. The increase of two stickers was due solely to gameplay.
So, I return to my question: Has anyone else noticed this behavior? What is the sticker increase based on?
Thoughts? And thanks in advance!