Nice game, it requires a lot of strategy and coordination (i really liked the friendly fire). The fact that you can't cancel an attack (when the little square becomes green) is a bit annoying, but eventually I got used to it. A really funny gameplay, good job.

P.S. You didn't make the music did you? I swear I heard it somewhere else...

I love this concept, dead simple but surprisingly complex! If you expand on this (more enemy types, node types, etc) you could have a really solid game on your hands.

2 Main issues, sometimes clicking on stuff felt a little unresponsive, mainly after shooting an enemy, like there was some sort of hidden cooldown, that was a little frustrating. Also when you try to shoot more than one enemy at once (since you can hit your own nodes with your shots) it only kills one enemy and the death sounds plays on a loop REALLY loud x)

Got to level 16 before I lost my last node, most of them were friendly fire >.>

Game looks really well polished, also addictive. I like this simple, but nice-looking graphics. I think adding a short tutorial level will be a good idea, since it took me a few levels to finally notice, that I also can shoot my own servers

Good gameplay. The graphics, although made up of simple shapes look really great thanks to the effects. I like the music you made. Also I have a suggestion. I don't know if it was intentional, but the main menu doesn't scale with screen size. I use 1920x1080 screen and the UI was really small. You are using Unity, so there's an easy fix for that: just selects canvas gameobject set it to scale with screen size(by default it's set on constant pixel size) and match width or height to 0.5, then it should scale well to any aspect ratio. But other than that, you did a great job!