There are several things you should know to play Lightris game:

Bricks of various forms fall from the top of playing area and your task is to destroy them.

Just try to form a solid row of blocks across the playing area and the row will disappear.

Falling bricks can be rotated, moved horizontally or dropped down.

The game is over when the bricks stack up to the top of the playing area.

This is the main idea. But Lightris is not an its simple realization, the game has a lot a features such as

• customizable playing area,
• various brick sets,
• magically appearing (or disappearing) blocks