I couldn't understand the mechanics of the game, its objective and what was it all about (maybe add a tutorial at the start explaining that). The graphics were way to simple and could be improved. Didn't understand most of the UI elements at first like the "M" button on top which was the menu button. Audio was alright even though the music was starting to get too repetitive.
Overall, the game can get a little bit of improvement but don't let this discourage you! After all, game development is all about experience and trial and error and learning from these is key to improve! Anyways, congratulations on finishing and submiting your game!