Stop the Virus. Help defeat the army of virus that had escaped from an infected cellphone your amazing cast of nickelodeon characters. Choose your squad mate and get blasting! Watch out for the tricky viruses and make it all the way to the end to win the game. Don’t forget to use your power-ups to take down the enemy. How to Play: Tap and drag or use the arrow keys to move your Squad Leader. Enjoy and have fun in playing this free online cartoon action game on Round Games.