It's a very nice game. I like the slice effect, when you cut an opponent and the screen goes narrow for a moment. You should consider implementing a repeat button in the menu, because there a good chance the game will glitch and you don't die properly, so you're out of the screen but there's no reboot. Also, damn it - there's a keyboard layout YX instead of ZX in a good deal of countries in the world! Free key binding is not a weakness, it's a useful option!