The game idea is there, and the game could definitely use more mechanics and systems. I thought my objective was to go past the spaceship and hit the earth, but it turns out to be a survive as long as possible game instead. Overall a cool concept!
Hello, this is the developer! Thank you for your feedback. The earth story would have been really fitting. And I actually planned to have more mechanics but I changed from using the pico 8 game engine to the unity engine halfway through which caused me to not have enough time to add in extra features. I planned to have power-ups, multiple ships, and levels. Here is an image of the missile design I was going to use-