Ha-ha
I lost almost every time. The game didn't really progress as I played, but it seemed to be hard in the beginning, even when I selected start easy! My suggestion would be to have different objects with different effects! One could be a "slow the blocks" "speed up" (you can have different names for them like "matrix" lol where you slow down and you can see the blocks a little easier) and have lives because I don't like just dying right away. Also, start out with a couple of blocks going North, South, East and west, then add more blocks per level... Which is another thing! There weren't really any levels! This could be great!
I like the colour variety for my mouse , but instead of it being a block, why not make it a triangle and have the colours less seizure prone. It wasn't difficult for me to distinguish between my mouse square, but others might have a problem.
:D
-CaddyCo-