Keep an eye on it to make sure the bubbles don't hit the lower line because you are game over at that point. With the miss counter in the lower right, you can see when a new row of bubbles will form. The middle one is 250 points, the ones left and right to that give you 100 points and the outer ones give you 50 extra points. When you shoot bubbes they fall in the buckets below, this will give you extra points according to which bucket they fall.
The bubbles have a ball guide, meaning you can see where you are shooting all the time, even with a bounce from the wall. This version has 10 filled rows with bubbles that you have to pop. The bubbles are clear and shiny and have a modern look and feel. This free version features a nice crisp graphics pack. So this is a fairly new bubble shooter game. It is from the Softgames game studios and released in May 2020. This is Bubble Shooter Free, as the name suggests a free bubble shooter game.