> Does this game not have music?
No music. I usually mute music in other games, so I haven't even thought about adding music here.
> One suggestion is that if the level becomes impossible (you used all your bombs and can't reach the exit), the game should tell you that.
Thanks, I'll consider it.
> Another suggestion is to tell the player something like "press any key to stop generating walls", otherwise they wouldn't know what to do at the start.
It already does that:
And when you move through the maze, there (at the bottom of the game), you can see what other buttons you can press, and some general information.