In UNO Four Colors, you need to use special cards wisely and reasonably to win, avoid keeping them until the end of the game to avoid high scores if you lose.
At the beginning of the UNO Four Colors game, each player will be dealt a certain number of cards, usually 7 cards. After dealing the cards, a card is turned up in the middle of the table to serve as the starting point for each turn. This card will be the basis for players to make their decisions in each turn.
The game will take place in rounds, when it is your turn, you will need to put away a card that matches the card that is turned up in the middle of the table. To be valid, the card you put away must have the same color or number as the card in the middle of the table. If you are lucky enough to have a valid special card such as a color-changing card or a draw card, you can also use it as a replacement.
However, if you have no valid cards left in your hand, you will be forced to draw a new card from the main deck and wait for your next turn.
In all UNO Four Colors or Halloween Uno levels, there will be special cards that you need to understand to play appropriately. There will be cards that are extremely helpful to you, but when you are countered, it is considered that the distance to victory is also further.