4 Colors Monument is a fun and visually appealing take on the classic UNO card game. The objective is to match cards either by their color or number while also playing action cards to shake up the game. The game's twist lies in the monument theme, adding an extra layer of enjoyment to the gameplay. To keep things exciting, players must remember to press the "1" button when they have only one card left, or else they'll be penalized by drawing two additional cards.