Thanks for the feedback. I really appreciate it. I am working on UI and the level select is in the really early stages if development. I take your point on the game over screen. Also, the controls are subject to change, space bar is going to be used for upcoming defense mechanism (weapons of defense) for the seed.
Overall, there are 30 levels and several other sub levels. With three different endings! I hope you follow this development, as I update the WebGL often.
Thanks again, and I use all of the feedback.