I really enjoyed this game and it feels like one of the more innovative mechanics for match games but I find that it is somewhat easy to cheese endless mode by biding your time to make the max combo (the 4 corners of the entire board) and leaving it on standby to reset the whole board when you need it at which point you start accumulating more time than you'll ever use up and any chalenge element has been trivialized. I think an easy way to make that no longer an issue would be to make the timer go down increasingly faster with a speed cap like tetris, and maybe since its counted in seconds in order to not make it jarring to suddenly change the measuring unit the timer could be changed to some kind of visual counter, perhaps a decreasing bar, which, now that I'm saying it, would also likely imply a max time cap, which could be a better alternative because using both measures at once sounds like overkill.
it would also benefit from some polish in the way of a mute button, a confirm window on the quit option and highscore registering to account for misclicks and typos, a higher definition for the font and above all else a pause button.
