Nice artstyle with the glowy lines, just needs polish to make it all follow the style and fit together. I'd change the font to something similar to it, for example, instead of going for the pixel? look. Like elb "elb.dev" .dev said down here, making the balls shoot farther with the charge up is a must for more complex puzzles later on. You'll probably update this too, but visual effects for retrieving the balls would be good, and a MEATY one for when you reach the goal. Basically, when you're going for something simple like this, polishing it to the max is a must. Gameplay is fine and fun enough, with a pachinko esque pull. Just keep adding more objects to it.