Original implementation of the theme! By the way, I noticed a few issues:
1) When moving the character, the game distorts in an unpleasant way (this can be fixed by switching Camera2D to "physics" mode).
2) The clouds have an opaque background, which becomes noticeable when they overlap with a button.
Otherwise, it seems to me that the gameplay could be diversified with different types of "Play" buttons, such as moving ones or ones that come towards the player.Good luck!