九九バトルかけ算学習アプリ is an exciting game where you defeat monsters by solving multiplication problems. Although it is designed for elementary school students, adults can also get hooked on this game while aiming for high scores. By defeating monsters, they are registered in your collection, and your goal is to complete all 104 regular monsters and 10 rare monsters. An impressive ending awaits you when you complete the collection and achieve a score of 10,000 points or more. For an even greater challenge, try to earn the gold trophy by scoring over 18,000 points. This app is completely free to use.

Please note that if you are using an older version of the app, there is a bug that may cause data loss. It is recommended to update to the latest version for a smooth experience. The developer welcomes feedback and suggestions from users.