By prisms and mirrors different color light beams must be broken, mirrored and combined to lead the right-rays to your destination. The game starts at the beginning still quite simple, the level rises after a few levels and it's always more fun. So it can happen that you ever have to spend several minutes in a Level. The game is fun and captivating.
Played on a Galaxy S3 with Android 4.0 with no problems and no crashes.
