Learning YiErSan at Mac App Store analyse

Learning YiErSan numbers could be fun !!! Writing YiErSan numbers with guidelines, and battle your friends or computer to see who is best in listening and reading YiErSan numbers !! Dont forget to protect the city from Zombie Attack !!! Features: - Practice Listening and Writing: Listen to the pronunciation sound, and follow the guide line to write the number - Battle Mode: Battle computer or friends (up to 4 people) to train listening skills and concentration - Zombie Attack: After several practices or battles, zombies are coming!! We have to defeat the zombies to protect the city!!