An awesome project!!!!
I have been thinking do a Simon game (http://en.wikipedia.org/wiki/Simon_(game
)) and when I have read your post I have impressed.
Indeed I was thinking how to solve the problem (without using a new power source) because all the arcade lighting buttons that I have found works with 12V. As far as I see in your web your buttons are working with 5v. Could you give me some info about it?
Thanks, glad you like the game
I got the buttons and leds from Arcade World UK. The buttons come with 12V leds but they also sell 5V leds separately.http://www.arcadeworlduk.com
Hope this helps and good luck with your project!