Character Design 1.3

I was recently checking out a few games and thought of Bioshock, reason I thought of Bioshock is because similar to what im trying to acheive with my character. Is that you can give yourself an injection which makes you asscesable to a variety of different special attributes focusing on the hand, Which is my main area of attack on my character. and provides you with a variety of different moves from flame attack, ice attack and even the ability to contol your enemies, I like this idea but instead of using something like an Inection I could use something like a robotic kind of dial which my character could use to control what state he is in.