The problem stated before about the mobility will soon be fixed; I have two Arduinos on the way (one cannot simply just have one Arduino; I'll be using the other for other stuff I do) since I've found they are surprisingly cheap and don't take away from the affordability aspect, plus it adds more functionality than going the alternate route of getting a more expensive integrated circuit and be button controlled as opposed to joystick controlled, as well as no worries about programs working in the background on the Pi.