Under rating threshold (hideshow)
Way to small for the fonts used - illegible on my system. Seems impossible to win a level unless you get a couple of lucky long cascades. Overall feels to slow.
Under rating threshold (hideshow)
Too little time, too slow movements, no functioning pause, if you're not completely lucky you can't beat it. Too unforgiving.
Under rating threshold (hideshow)
ok, this game is one that "everyone see before", is more luck based than challeging - the swaps of the pieces are TOO slow, making the time critical, always critical.
So, make the pieces faster, and add a bit more time (or require less swaps to continue). At least, this is my first opinion for this game.