A free port of Frozen Bubble for Windows Phone, a Puzzle Bobble style game is now available from the Windows Phone Store. In the game you shoot frozen bubbles at bubbles hanging from the top of the screen. Bubbles are knocked down the screen by forming clusters of three or more bubbles of the same colour.

The aim of the game is to clear all the bubbles from each of the hundred levels. A time limit for each level is enforced by a descending ceiling, something that's not really a critical factor in the first twenty or so levels, but becomes much more important the further you get into the game. 

The original Frozen Bubble was written in Perl by Guillaume Cottenceau for Linux, which explains why it is a penguin character that shoots the frozen bubbles from the bottom of the screen. It's simple game play remains perennially popular, and works particularly well on mobile devices.

Frozen Bubble is a free download from the Windows Phone Store. The game is ad-supported, but an ad-free version in the form of Frozen Bubble Pro (£0.79 / €0.99 / $0.99).