i have found a bug,if you put a disco zombie in the corners of the graves, one zombie will appear over the garden. 4/5 stars need plants being buffed or more types of garden.
I released an update, Marksman Zombie is now stronger and made some adjustments I forgot to add in patch notes, and there's a new plant called armored wallnut
The update is released just now, but there is no Explode-O-Nut, instead of adding Explode-O-Nut, I added Skeleton Zombie, an almost unkillable zombie, a late game flaming pea can easily kill him