Levels increase by clearing lines. As levels increase, pieces fall faster, but scoring increases.
Clearing a line separates all pieces touching the line into their own block.
Activating a POW on the current piece separates all placed pices into blocks that are independent and loose when the piece is placed. This causes them to fall.
POWs are earned by clearing lines.
Clearing a certain amount of lines activates a piece picker to choose the next type of pieces to place.
After a certain amount of pieces are placed, a big piece appears.
Friends appear after a certain amount of lines are cleared. They affect properties like speed and score or give free POWs. They disappear after some pieces are placed.
Settings are highly configurable. Check Options, Controls, and Theme.
