There is a glitch where the ball goes through the little bar.

Looking at your games, I think I recognise where they come from. :)
It's great to learn with a tutorial – but try to make the end result different. That's the point actually. You want to learn to create your own games, not to make something hundreds of others have done before. This is the result of a course section, but you made very few alterations (in all of your games actually). Ideally, after completing a course, you should look at the game and say: "I have the basic gameplay now, what could I add/change to make it a better game? To make it my own game? A *complete* game?".
There's plenty of things you could do. New kinds of bricks, more lives (!), powerups, score, different art etc. Be creative.

Tutorials are designed to teach you stuff a broad audience can put to use, so the end result is always kind of bland, short, core gameplay with little to no original elements. Even if other people don't recognise it's from a tutorial, they'll see your game is "good enough"; in other words "average", thus "3 stars".
If you want to be a game developer, especially indie, you need to sprinkle the game with something fresh, new, intriguing to captivate the players – which really just comes down to "your own ideas".

Just some advice. The games can be a good base… you simply need to incorporate more aspects you could call your own in them. Good luck in further learning.