Hello....recently I created a simple paddle game (2 paddles and one ball). So, I can grab a tutorial of 1-2 hours about how to do it from scratch. It has score (for each player), game over message, and "press click" to start game message. Also, texture, physic for the ball (rigid body). At the moment, the movement is performed with the keyboard (arrows for one player, and keys J and L for the second player). I have master and PhD in graphics computing.
Best regards!