Thought I would update this thread.
Wild baby mouse was successfully released.
Cheeseburger is doing pretty much the same. Bit of a head tilt still and when she gets very excited, like when she's running on the flying saucer, she circles. But otherwise she acts like a normal mouse. She and Bacon have been with me for coming up on 16 months. Bacon is the same old Bacon, btw.
We passed our one year "gotcha" anniversary for Twix and Hashbrown earlier this month. Twix has developed a small tumor under her right front leg and has developed a bit of a bulge in one eye. I was just at the vets with her today and it's something we're monitoring closely. If the lump starts causing discomfort or grows very large, we'll discuss removing it. If the eye worsens, we'll be back in. Hashbrown is great. Still my chubby girl.
Daryl has had an ongoing issue with inflammation in/around both eyes. We've been to the vet many times, tried different treatments, I've tried different cage setups, scrubbed everything down, etc. There are days it looks a little better, but then it gets worse again. Never fully healing. He's finishing up a second round of antibiotics now. I don't see him fussing over it at all but then I don't watch him all night so that is a possibility. I'm willing to hear out any ideas, if anyone's dealt with a similar issue. He is still eating, drinking, playing, grooming, etc normally. Here's a picture:

He's about 12 months old now (with me for 4).