Thank you for the review!
Family BASIC can produce sound. I just used beeps because it cannot play music and run the gameplay at the same time. Or it may be possible but I am not advanced enough. I did use a tune at the title screen. Did you have your sound turned on?
Regarding the buttons, if you press more buttons than one, it may not work.
Family BASIC is for simple games. I wish I could've made more levels, but I hit the memory limit.