Thank you for this very heart-warming comment, I really mean it. I'm glad you appreciated the concept of the game and the execution.
As for the tutorial, it's definitely something the game lacks of. I regret not being able to implement on-screen controls and some slight tutorial before the end of the jam. Also, we should have removed the need to press a key to activate the green circle.You should be able to play with the keyboard as well. Unfortunately, you can only use arrow key and not WASD, because we forgot to add it. In my opinion, the game is a bit better with a controller.
Thanks again! I hope we will be able to deliver a "more finished" version of the game that you can enjoy even more!