I have added a pixel clipping text scrolling to introduce the game, maybe a bit long

I'd like to introduce a point counter increased for each ufo killed
Edit: Added a scoring system. Each enemy gives a certain amount of points, which appear for a moment on the screen. The idea is that, when you reach a certain amount, you get some kind of benefit, such as a double shot or extra life. On the right side would be the energy bar of a special enemy, with a greater amount of energy, that would need several shots, and that would give more points.