I love this game with all the polish and love it has in it! The only thing I can really complain about is that the spikes should have some sort of "max randomness." I am just guessing here but from what it looks like the thing that determines weather a spike is on the left or the right is the proverbial "flip of a coin" which is fine I just found myself in a level where I was almost never in danger of a spike because they all spawned on the opposite wall. so some kind of system where if three spikes have spawned on the left wall then spawn a spike one the right wall would seem to help a lot!
other than that the game is awesome and gets all the mileage it can out of the idea
P.S (sorry for any spelling errors)