This was the funniest game I've played so far!
It start slowly, but then you quickly find yourself in a big mess trying to prevent blue and red cubes merging together while your precious yellow cube has suddenly become green without you even noticing.
It gave me some tetris vibes for its simple yet deep and engaging gameplay.
The player has always many options, and as for tetris, you are basically playing against yourself.
The first time that you mix colors you go like :0
Only downsides were the visuals and the controls: getting the right cube sometimes was a bit hard.
Great game!