4 in the line is funny game for 2 players it's good in multiplayer it's not so dificult to do it there is no gliches player can only 1 time push the button (if he push button 2 times it won't work until player 2 finish his turn) there is redstone lamp when it shine is that players turn. it's funny and good game try it

sorry for my english speaking I am from slovenia....

Additional Notes

must try it and I fix some bugs