Just like Vertical Tic-Tac-Toe but here the arrows on the board show where the disk will drop. The player first depositing his four disks in a row will win. The first player to move should deposit his disk only on an arrowhead...
 
The game is played on four 3x3 CONNECT4 boards, each rotated at an angle of 90 degrees from each other, and the winning four can be achieved on the common part of the boards...
 
It's a popular game in Hungary for approx. six years.