The rules are simple:

1. Each little square must contain all 4 colours.
2. Each color must contain each and every number.
3. Every time you change your mind and move the position of a colored number you lose a life. You start the game with 5 lives.
4. You have 5 minutes to complete the game.

Every time you win a game you gain experience points that will allow your avatar to grow and, eventually, become a superhero.

Furthermore, in PvP mode, you can challenge other users in breathtaking duels. For these games you will have unlimited time and infinite lives but your final score will depend on how fast you were and how many lives you used.
Remember, THE DUEL WILL BE WON BY THE PERSON WITH THE LOWEST SCORE!
To help you in the most complicated duels you can use "potions" of three different types:
1. LIVES: Lives potions can be used in duels to regain a life after losing it for any reason. Your total score is affected by how many lives you have lost, so regaining a life will improve your final score.
2. TIME: Time potions will temporarily pause the clock during a duel giving you a few seconds to select numbers while keeping the final score fixed and thus improving your chances of winning.
3. COLOR: Color potions can only be used at the start of a duel and will automatically complete the entire first color for you giving you a significant advantage to win the game.

To get these potions you will have to complete the MISSIONS… but… watch out for BOMBS!!