YOU SAID:
I, Undyne, will strike you down!
INTO JAPANESE
私は、ウンダイン、あなたを打ち負かします!
BACK INTO ENGLISH
I will beat you, Undyne!
INTO JAPANESE
私はあなたを打ち負かすでしょう、ウンダイン!
BACK INTO ENGLISH
I'll beat you, Undyne!
INTO JAPANESE
私はあなたを打ち負かすよ、ウンダイン!
BACK INTO ENGLISH
I'll beat you, Undyne!
That didn't even make that much sense in English.