You've got some good points, guys. All transformations so far combined both characters in one "creature" or object and didn't transform them in two separate creatures... . So in these cases, it's hard to create different sprites of both characters, even with their own set of googly eyes. Nah, I wasn't thinking about using the same sprite for both characters, but much rather zoomed in / out parts of the transformations.
Yep, Octopeart! The way they did it in the Banjo games made the transformations look like a cheap disguise and the characters themselves kinda cheeky/ballsy, which was hilarious in its own way. I'm especially thinking about the dialogue with the guard at the colosseum entrance in Mayahem Temple, who said that "it's pretty obvious" that they're trying to fool him. Well, it's probably staying that way in Yooka-Laylee, when I'm thinking about it!