There aren't any hacks for guest happiness that I know of. :sad I think it may be a glitch though, b/c I have this problem too......... I put at least 2 family restrooms at any food court, and place as many gazebos and benches throughout the zoo as space allows, and it sometimes doesn't help! :crazy I had been playing this large zoo that I dedicated to endangered and critically endangered species......... I had at least 6 gazebos, probably 12 family restrooms, and I ended up lining
every length of fence that wasn't a viewing area or already had a kiosk or something in front of it, with benches (we're talking probably a
minimum of 60 benches!!!!!!!!), and I still got a
TON of hunger and lack of rest complaints!!!! Right up to the point at which the game totally froze, with no change after at least 30 minutes, and I did a forced shutdown, reboot, only to receive an error message that the saved game file was corrupted and could not be opened!! :! I had to just delete it.
After studying instructions for other editing hacks, I just started trying to find the relevant files for what I want to change and do it myself. But, I am afraid to do it with ES, b/c it has
SO many problems!!
I hope you find something to help you out!