Played the game. It's fun. But there are a few problems I think-
1. The "Strike" system loses its relevance when you can just catch the ball, and again throw it aiming at the enemy. You don't even need to rebound the ball with your bat to invite the danger of getting a "Strike"
2. In some levels you can just throw the ball, and don't need to do anything. The ball will kill all enemies by itself. The enemy projectiles are a check for that, but that mechanics may need some more work
3. The colour of enemy projectiles should have been changed from maroon to a bright colour for more contrast w.r.t. the floor colour which is dark. It's a bit difficult to notice the projectiles. Also the enemy projectiles should have been destroyed when it goes out of the level.