This is one of the Zipline projects for FreeCodeCamp. The goal was to make an application that replicates the timeless simon says game.
No codepen this time but there is a github page at http://tyrantwarship.github.io/FCC-SimonSays-Zipline/ for the demo
The front of this project was heavily based on the design and color palette of: https://dribbble.com/shots/1778330-Simon-Says