| Select Problem | |
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Players answer the questions by choosing the correct answer of the question from a series of numbers shown using cards. Choosing the correct number will cause the ghost to take damage, reducing its HP(health points) by a set amount and earning the player some ghost coins.  By selecting and pushing [Hint] the player will be able to see a hint that can aid them in solving the question. Choosing to reveal a hint will require the player to spend ghost coins. |
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| Unlock Problems | |
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Remove the lock hung on the door by using the number of correctly solved problems as currency. If certain conditions are met and the numbers on the lock match with the numbers of problems solved correctly, then the lock will be removed.  If all the locks on a door are removed then the door will open, and the player can advance further through the game.By selecting and pushing [Hint] the player will be able to see a hint that can aid them in solving the question. Choosing to reveal a hint will require the player to spend ghost coins. |
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| Bonus Stage | |
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By acquiring the required item or “key”, the player can advance to a special bonus stage. In this game mode, players must defeat as many ghosts as possible within the time limit.When the player exterminates ghosts, they will receive ghost coins. |
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Now children can study addition on the Nintendo Switch! Greco and his ghosts await your challenge! |
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With Nintendo Switch Parental Controls, you can utilize your smart phone to monitor your child’s activities.
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