The original Frozen Bubble was written in Perl by Guillaume Cottenceau, and uses the Simple Direct Media Layer (SDL) library.
This game features 100 levels and includes a level editor.
Like many popular free software/open source games, it features penguins a la Tux, who in this game shoot the colored frozen bubbles to form groups of the same color. Such groups disappear and the object is to clear the whole screen in this way before a bubble passes a line at the bottom.
Support for COLOR BLIND PEOPLE ALSO :D