Love your game! However I don't think level three works. Even when I get it down to two 1 blocks or one 2 block and line up the correct lazers I don't finish the level! :/
Each block has to be hit by its number of moonshines, the colors of which must combine into the block’s color.
In this case a yellow block has to be lit by one red and one green moon at least, so no 1yellow block can be part of the solution ;)