In the Adventure of Lolo games, the controls are pretty simple: Press A to use your magic shot, and press B to use your PW item.

But in the second game, if you go to the password screen and enter the password "CSTM"

Which kind of looks like the word "CuSToM", you get whisked away to a config screen

Where you can customize the controls to your heart's content.

Not that there's a lot of customization to do.