Lightning is a solitaire game in an Uno style. If you love the card game Uno you are gonna love this fun and different solitaire puzzle game. The rules ar to get rid of all your cards before the computer does. Drag one card at a time from your hand at the bottom of the screen to one of the four discard piles in the middle of the screen. If the arrow under the deck is pointing up place a card that is one value higher on top. If the arrow is pointing down place a card that is one value lower on top. Going up, once you get to 13 the next match is 1. Going down from 1 the next match is 13.
To get more information about the rules click "Instructions" in the game.