Krystal Drop is a free clone of an excellent NeoGeo puzzle game, Magical Drop. Ported to Pandora by ptitSeb.

n Krystal Drop, you play on a field on which lines of gems are being dropped by the top of the screen, at a regular basis, or when your opponent makes a combo.

You can take or drop gems from the bottom of the screen to make gems disappear. If you move gems in order to create a vertical alignment of at least three gems of the same colour, they will burst and start a chain reaction with all neighbouring matching gems. The aim is to prepare some other chain reactions while the first gems are bursting, in order to make a combo and send lines to your opponent. You lose when some gems reach the bottom of the field.

http://repo.openpandora.org/?page=detail&app=krystaldrop_ptitseb