"Visual" effects managed to impact gameplay. See level 13: try turning the middle blue into green, then the green into orange. The red blob at the left sometimes (half of the time) moves up to separate some orange from the rest, making the level unsolvable.
Making a match of two orbs possible at certain circumstances only is illogical. I can see people that have just started the game to comment "should scramble when there's no match left" (while there is a match of two with combo orb on the board, because they don't know it).
@lakawak: In fact, leaving less area gives more score. It's written in the description actually, although I agree on displaying the score.
That aside, the concept is pretty new (instead of the old boring "slice and leave as small area as possible without hitting an enemy", now it's "slice and leave an 'enemy' per slice"), and executed pretty nicely. I only hope that there is more text as tutorial; at the first time seeing red lines, I didn't think that the slices can't cross it, for example.
Sometimes alternating between 2 and 3 for the pentagons can worth it. It will always destroy the pentagon...if you don't miss any key when alternating the shots.
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