This is a very good-looking game! The graphics are super nice and are quite consistent throughout the game! The story is nice too, it really gives a nice backstory to the game, adding a bit of flavour. The gameplay is quite polished too, with systems that fortells where the new enemies, walls and laser spawn. That alone deserves some kudos!
For some criticism, I'd say the game doesn't really increase difficulty the further you play. I played till around 4 minutes in, and I don't see how different it is compared to the first 2 minutes. It makes the game stale when you play longer and it gets quite repetitive afterwards. I'd also say the gameplay doesn't feel connected to the theme. Probably some more backstory to explain what the red and green cubes are plus some graphical cues should be enough.
Anyway, this is a well well-made an polished game! Well done!