Ryuukishi made a post on his
production diary after getting some user input.
In the full release, he's thinking about tweaking the minigame system, so that if you're only on level 1 (i.e. you haven't reached a certain score yet), the minigame will continue to advance, even if you fail each round. That way, if you've got a computer or a touchpad that makes winning the game impossible, you can still advance through the story.
Also, if anyone's been wondering how to save your game, you can only do that at a few "break points" in the story. Ryuukishi's planning to add a short explanation for these break points in the full game tutorial, and also to include more of them throughout the game.