How can I send short serial commands?

@Lucas GOUTFREIND I´ve changed nothing in InstinctBittle, or Opencat.ino, I´ve only added an if else statement in Opencat.ino at the end. The if/else statement works (At the same time some Neopixels are on, so I see if it works) and starts the movements, but only the first frame. I´ve inserted a delay, but this also doesn´t work. Do you mean, that I have to modify the InstinctBittle.h? I don´t want to change the commands at the moment, I only want to call them