1. Being able to choose another color for the rodents + choosing if they're female or male.
2. Two rodents in one cage, being able to have them reproduce and put their babies in other cages or sell them.
3. The interaction of playing with the rodent could've been a bit longer (of different altogether like the sim puts his/her hand in the cage and the rodent chases fingers = bad relationship results in a bite and the disease).
4. A few different cages (three maybe, also a smaller one to put on a table for example).
5. The possibility to find a rodent outside and keep it as a pet.
6. Letting rodents outside of the cage, for example in a mini pre-setup obstacle course to let them play in. Considering babies are glued to their beds and all of the animations I didn't expect to see this anyway but it would've been nice.
7. Instead of dumbing the rodents down with medicine so they won't leave their cage, maybe it could've been something to make rodents smarter and have the very intelligent ones take off in rockets (because lowering their IQ seems a bit mean and some might like regular rodents).
8. Fish becoming pets (having to feed them, clean their living spaces).
9. Nothing cats&dogs related.
8. ....
Too much for a stuff pack I know. I would've preferred a game pack with a lot more possibilities and "first pets" to be honest.
