Hum ... I can't play the game, There is an error: "An error occured running the Unity content on this page. See your browser JavaScript console for more info. The error was:
InvalidStateError: A mutation operation was attempted on a database that did not allow mutations."
Very good game, the concept is simple and attractive. Just some bugs, sometimes we are killed without touching an oppsite color and at level 25 I haven't my square ... refresh does nothing.
A bit too easy but the difficulty may get harder in further games.
Thanks for the feedback, likely mute for the music will be added in a future release. I'm running on a very modestly specced Toshiba Satellite bought 2nd hand over 6 years ago with no fancy graphics card and haven't had any lag problems.
If you still have trouble, you can PM me your browser version and OS version, and I'll try and help you.