Todd thought about changing any one of them some other way, but figured all of the muscle mass he drained had to be gifted to someone else who deserved it instead. And he just so happened to know who to gift this: the brunette mini-giantess!
He activates the remote as he watches her muscle grow bigger and bigger, transforming her more and more towards an amazon instead of a mini-giantess. After she reached quite an impressive amount of mass, he figured he'd stop for now since she still had to look feminine. Instead, he found a new option: Muscle Density
He quickly shot her for a few seconds, but noticed that her muscles started to slowly shrink. He figured that with them getting denser they probably had to contract in order to do so. Trying to counteract this, he activated the Muscle Growth option as well. And what he saw was amazing. The two options managed to seemingly play a game of tug-of-war. For a few moments, the muscles were contracting and densening while shortly after they stopped and continued to grow to their previous size. Todd was so entranced by it that he held the remote onto her for over a minute, her body having repeated this process dozens of times over and over.
While Todd thought her muscles were only a little denser and stronger than before, he accidentally made her invulnurable to almost everything on earth. Her strength eclipsed that of any living being on the planet as well, being able to lift thousands of tons as if it was a feather.