One problem I see is that with upgrades the crops wilt way too fast, I only have like 5 seconds to react after they're at maximum harvest and that's just a little absurd.
I think the "who needs life" achievement should secretly be achieved by Playing the game for a long time straight, instead of like the other "who needs (etc)" achievements.
The VIP map glitched out and whenever I touch the VIP I get teleported out of the map, die, and then the VIP dies. So far this happened every time I played it.
There is a bug that for the organization members it says that it takes them 5 minutes of real time to die, but 30 seconds after I bought 3 organization members it said I had 0 implying that they all died.
There should be an upgrade for poisonous mushrooms that when an animal is attacking a mushroom it will slowly lose health. It can be upgraded for increased health drain.
When the game gets too hard to play their is still one more use: 1) Pause the game 2) Open another tab of what different game you want to play 3) Turn music off of new game 4) Enjoy epic background music :)