Are these buttons solely for cosmetic purposes

surgeon-simulator

In Surgeon Simulator for iOS, there are these green, yellow, and red buttons on a machine. This is what it looks like:

enter image description here

When I press them, the only thing I notice them doing is turning on and off (as in the buttons themselves). Is there a combination of colors that I need to press to unlock something or are they just there to play around with?

Best Answer

They are purely cosmetic. They serve no other function than eye candy.