Really unique entry although it is quite a challenging experience it is still fun :)
The tutorial is great, quick and snappy and gets the player up to speed quick but having it as an optional button when the game opens up for the first time leads to the player 9/10 times most likely skipping it, having the tutorial merged with the play button and having it appear when the game is first loaded up and when the play presses the 'Play' button and after that not showing would be a nice and welcome change!
Overall good game, great job on this :)