Beleive it or not, Fifi and kaliko are so similar they can take control of each others bodies simply by placing their heads above where each of their heads should go (as shown) Fifi is loving the swap, those few extra feet and her wieght increase makes her feel "heavy duty".
Kaliko however is more pessimistic with his end of the deal, He likes being smaller as it allows him to be quieter and less likely to attract attention to himself, the reduced weight also helps him be lighter on his feet and make less noise. however he is not a fan of the garish pastel yellow pallette that fifis body has, and is not such a fan of the number of externally mounted components (the reactor being his biggest concern), everything sticking out about the place like that makes him feel a little vulnerable.
