These are quite a few anomalies on Kroakatoa in which balls observed on the new island seem to break the rules compared to the other island.
Example: You fire two shots in quick succession. In Classic Zuma Blitz, your second shot will (almost always) go cleanly go through the first (assuming you made a match) and if the second matches, you're guaranteed a double tap gap shot score. However on Kroakatoa they can do one of three actions:
- Your first shot makes a match, and the second ball passes through creating a gap shot. Everyone's happy.
- (lower left four panes) The first shot (yellow) lands, but the second ball (red) lands in place before the first ball goes in all the way to trigger a match. Balls not cleared and you don't get any points.
- (entire right half) The first shot (purple) triggers a match, but the second ball (red) doesn't trigger a gap shot. Instead, it behaves as if the fired purple ball still existed, sticks to the nearby set of balls, and rolls them all back with a combo. That's quite a loss of points there.
Both instances elicits a wtf from the beetle in question (as well as lower scores). Keep these cases in mind and fire a bit slower.