Pronouncing Liens des soeurs
will probably leave you tongue-tied, though it actually means 'bonds of the sisters' in French.
The game plays a lot like Compile's Puyo Puyo series, in which the player has to connect four or more pieces of the same color make them disappear. A win can be achieved by creating multiple combos and sending useless pieces into the opponent's playing area.
The Z and X keys are used to rotate the pieces. To use your special attacks, just press the C key when you have gained a gift which is indicated at the bottom left of the screen. A manual with playing instructions can be accessed from the start menu after installation.
Name: Liens des soeurs
Developer: Haru Urara