R-Ray by Yuansheng Xu (Games)

Challenge your brain with the 54 nightmare puzzles of R-Ray!

The three additive primary colors are green, red and blue.
By mixing primary colors, all other colors can be generated.
Use R-Ray of the primary color to light the cuboids with corresponding color.
R-Ray can be reflected and refracted.

It is a tribute to Chromatron and Lazors.