Reus was superb last season for Borussia as they won a Champions League spot, but left for champions Borussia Dortmund.
“It is definitely harder to score in Germany”, De Jong told Bild.
“In Holland, there is a certain level, the Bundesliga is a very strong competition”, he added.
“Also, in the Bundesliga every game is a big game.
“Marco Reus scored 18 goals last season. I also want to score a similar amount, but it is going to be difficult because it is my first season.”