Toon Cup 2021 is a brand new game. The player is able to represent their home country in the game. It offers the ability to choose countries from the Americas, Western Europe, Eastern Europe, Africa and Middle East, and Asia Pacific. There are a total of 72 different countries to choose from.
After the player chooses their respective country, they then choose what mode to play. The player can choose either tournament or league mode. The characters are from Cartoon Network shows. Some players might recognize the characters from shows such as The Powerpuff Girls and Adventure Time. Some of the characters are locked in the beginning. After the player chooses a captain, they then choose characters to fill player 2 and player 3 positions.
After the player chooses their characters, a display appears to show the 3 characters they have selected. Depending on what game mode the player chose, the player is shown which team they are matched up against. After this, the player is given the option to play a tutorial to learn how the game and controls work.
The player controls their character using the arrow keys and uses the spacebar to pass the soccer ball to their teammates. The player can also tackle players of the other team by getting close to them and pressing the spacebar as well. The player holds down the spacebar to kick the ball when they are near the goal. A colored meter appears when the player is in the process of kicking the ball. The player must release the spacebar when it is on the blue part of the meter to kick the soccer ball. If the player releases the spacebar when it is on the red part of the meter, it will result in a missed kick.
If the player chose to do the learning tutorial, the game will begin afterwards. The player will notice that there are blue boxes scattered throughout the field. These blue boxes contain power ups such as freeze and snow ball. There are also gold coin bags on the field that the player can collect as well. The duration of each game is 1 minute and 30 seconds. The player must win the first game to advance to the next one in tournament mode. Leaderboards are also shown to the player displaying the different standings of the countries competing in the tournament.