Thank you for your feedback! I did not include any score system or power-ups intentionally to see the reaction of people about this game without any of the 'ornaments' of the game.
The replay button is not disappearing from the screen, I'm in windows 64 bit and downloaded the game to play. The concept is good, but I could not enjoy the game just for the presence of replay button in the middle of the screen!
Nice concept to work with. The meteors if had animation then it would be a fun experience. The game lacked some sound effects. It would be more complete if there were chances for upgrading the gun. Overall the game was a good one.
The concept is unique, It was a fun experience for me. The only thing I would like to say is that if the controls were a little bit smoother then the experience will be more fun. If there were some challenges, or high scores, or something that makes the player engaged would make the game more complete. Overall it is a nice game to play for passing time!
