This is a very polished game. The sound affects add soo much sensation of the rocks and moon colliding it feels so satisfying to do so. I love that the rocks collide with each other can also destroy each other. The particles when hit is a nice touch. Music adds a chill but also slow intense sense of mission to me protecting Earth.
My skills are not good enough so I never made it to the 3 skill upgrade. I did make it to the 2nd but I always die before I got the chance to use it. I did get so much better in using the flip skill though I am still confused which direction my left right input will move the moon. The direction are not instinctual when I flip it as it "also flips the left right". I know it is relative to the ship but when it is upside down my brain does not quickly work it out and I usually go the wrong way and my Earth takes damage.
Over all great job to the whole team you have scope very well and make a very polished game.