Yep rats are awesome!
I've had them off and on for 10 yrs.
Currently have 8 girls and 1 boy...our second boy passed away last week though so gotta find him another playmate.
Rats are extremely sociable animals and fun to play with!
Hamster wheels aren't good for rats though cuz they're larger than hamsters and also might get limbs/toenails caught in the rungs.
2 fun activities for them....
Get a toilet paper tube, fold up one end and put a bunch of treats inside like cereal, yogurt drops a couple raisins etc then fold up the other end, throw in cage. The have keen senses of smell and will have fun finding out how to get to the treats inside...lol
Get a ceramic croc from pet store, fill with water and drop a bunch of frozen peas in it.....rats actually love water and will have tons of fun dunking for the peas...good during hot summer months
Enjoy your ratties!!