Instruments by Elizabeth Reynolds is one of the puzzle games submitted to our first Game Design Competition. Four instruments sit silently on the right side of the screen, each in a different colored chair. Using the corresponding controls to the left, activate the instruments to produce a green wave on the bottom of the screen. Different combinations of instruments playing at the same time produce a unique wave. You can also adjust the volume to create taller or shorter peaks and valleys. The goal is to match the green wave with the black one, so you'll need to experiment with combinations before you can get it right.
Instruments is a very simple game and there's a bit more guesswork and experimentation to it than straight-up puzzle solving. Adding actual instrument sounds would have added a thick layer of delicious musical icing to the game, making it absolutely irresistible. But even in silence, Instruments is a nice experience and a great submission from Elizabeth.