I definitely liked this game. A few suggestions I might say for your next one, or if you make changes to this one: 1) Have different songs. the one you have one it isn't bad, but gets old fast when things get a little frustrating. 2) A specific mouse cursor in game. It was a little bit confusing at the beginning before I figured out what part of my cursor could and couldn't go out of the lines. 3) Some of us can have really twitchy clicker fingers. Some of my frustration was from when I'd accidentally click the mouse and it would restart the level. 4) Something to try fixing if you make changes to this. I was able to skip going to the button on level 12, but rather scroll right over the blockade to the door. It might have been because I had already pressed it on a previous try and died before making it to the door.
Those four things aside, I'd say it's a good game and has replay value.