yai, 3rd place this week in highscore, haha.
Nice game, i've played something like this before(but wihtout the "falling" part of the blocks) so i got the hang of it quite fast.
BUT i think it would be more enjoyable in the long run if EVERY removing block creates a few seconds to the timer. So that the time is not the main difficulty of this game but the increasing colors of the blocks! Just my idea.