YOU SAID:
My friend is playing a game
INTO JAPANESE
私の友人はゲームをしています
BACK INTO ENGLISH
My friend is playing a game
INTO JAPANESE
私の友人はゲームをしています
BACK INTO ENGLISH
My friend is playing games
INTO JAPANESE
私の友人はゲームをしています
BACK INTO ENGLISH
My friend is playing games
That didn't even make that much sense in English.