I'm sure everyone has their power up system preference. My favorite is the one where when you lose your mushroom, you don't lose your other weapons. The problem is I have to play it on Very Easy where everything dies with a single hit. I propose the ability to select whichever of the current 3 power up systems, regardless of difficulty. It can be in the options menu with the selections Easy, Medium, and Hard versions. Hopefully this will be considered and can be added with the next big update, whenever that may be.