We put a nice spin on space invaders by adding sound detection, the game isn't identical to space invaders but the concept is similar. For the sound detection, you must have your mic enabled on the webpage and the keyword is bang or bam. If you say either of those words it will make your spaceship shoot, as for movement it is with the arrow keys. (Sound detection only works if you click the square with an arrow that says open in new tab.)
This project was created by Dale Sanchez and Dylan Ignacio.