Good effort (especially on the menus), but there is a serious design flaw with the game itself.
This game is completely impossible to win.
This same problem appears in lots of games posted here.
There is a fine difference between impossibility and challenge. One of the most important rules for endless games such as this is too keep it fair no matter what. If there is possible that a situation could arise in which I cannot win no matter what I do, then your game has failed.
There are times in this game where asteroids spawn in a clogged wall that completely blocks my way, which makes the game impossible. You can’t just plug in a random function of y where actual game design belongs. You have to think harder about making sure that there is always a chance to win. Always.
Maybe make sure the spawns are farther away from the last spawn, or time them better, or something else. Just make it fair to play and avoid those walls of asteroids.
-wes