It is a Halloween variation of Solitaire. You need to pass all 100 levels. Use jokers and other bonus cards to simplify the process. You can get the bonus cards by clicking on the ghosts and other spooky characters.
You have to draw cards one at a time from your stockpile. Select the cards that are higher or lower in value to your drawn card to remove it from the playing field. To complete a level you need to remove all the cards from the playing field without running out of cards from your stockpile.
Snow
Amste
Snake
Speed
Super
Witch
Color
Super
Duck
Tic T
Noob
Bhide
Pop C
Lost
Glact
Makeu
Chris
Cooki
Princ
Brick
Metal
Block
Hospi
Squid
Winx
The P
Sing
Hallo
Fruit
Merge
Cirru
Army
Swing