I thought about a shooting cooldown, but every time i implement something like that in one of my games I always get complaints about it being "arbitrary." so I decided to go the route of not limiting the player this time around.
With the plants thing, I left it that way cause it would have been kind of time consuming to code it out, plus in actuality I didn't bother giving the squirrels good enough AI to run to the nearest screen edge so they just run in a random direction. If one spawned on the edge next to your flower, then decided it wanted to go for that flower specifically, then also decided to run back to that edge, then that was very unlucky lol.
Im glad you enjoyed it!