Name is misleading - where are the cubes, I see only squares!
The concept isn't exactly new, it's just a copy of the plain old Snake game I've known 10-15 years ago. You can play this for days if you are bored enough.
What I miss is at least a little spark of innovation. The only thing you do is count points. There are no upgrades, levels, special effects, sound effects, or music. I'm playing this on the internet, yet the game does not even offer me to share my highscore with others. That's a lot of opportunities wasted.
As far as I can tell, there is only one background image, which is not very pleasing aesthetically, as there are diagonal stripes, which go against the minimal quad design of the snake and collectibles.