YOU SAID:
guess who got in deep
INTO JAPANESE
誰が深く入ったかを推測する
BACK INTO ENGLISH
Guess who's deeply entered
INTO JAPANESE
誰が深く入り込んだのか
BACK INTO ENGLISH
Who came deeply
INTO JAPANESE
誰が深く来た
BACK INTO ENGLISH
Who came deeply
That didn't even make that much sense in English.