The developers of geoDefense and Harbor Master have collaborated on this addictive action game. It’s very simple and very hard to put down. You tap shapes to get rid of them, if two shapes of different colours hit each other, it’s game over. Add to that a finger-dragging combo system that increases gravity as you go and some useful power-ups and you’ve got something that may well become an iPhone classic.


Shame the leaderboards have been hacked, but the developers are working on it, apparently.

(Oh, and ignore the high score in that screen shot – I’ve got over 25,000 now.)