this game is too difficult.
-spikes are too difficult to control. it's not following properly. I suggest, making it the other way around - change the cursor to spikes, and the spikes to that gray thing. Or, use a different equation for mouse trailing.
-the 'bubbles' go to places where they are impossible to hit -the edges- and they sometimes linger there too. Maybe their movements are too random. Try using other equations for that too -trigonometric ones maybe.
-i liked the music and sound effects, it kind of fits the atmosphere of the game.
Way too hard. I have to use my mouse to control the gear, but I'm not allowed to touch the "bubbles" with my cursor. Instead, I have to rely on the completely stiff and slow-trailing gear. One good thing: When you die, you don't have to start over from the first level, which is good when playing a game this difficult.