Sorry, I didn't understand how to complete the first level, so I can only praise the cool music, and yes, it would be better if the game was available in the browser.
Yeah, I definitely should have explained the goal of the game (which is trying to eliminate all mice until there is one left) but I ran out of time :D Also, unfortunately I didn't create the music in the main menu. I found it from the internet as you can see in the credits.