I gotta say that those sounds woke me up and the poses the robot made were fun, very satisfying to work with!
The mechanic of swapping the colours around was cool and got me in ways I didn't see coming. Though that did get me in situations that felt kinda mean. I think an indicator of an upcoming event would have been nice, like a counter telling you how many moves left until a swap.
I also agree that the next block should blink the upcoming colour, it would be easier on the eyes instead of having the player shift their eyes everywhere to see what key they have to press.
This is one of my favourite entries; while simple, it is fun and satisfying to control!