The striker is unsure if he will stay at Newcastle as he prepares to leave parent club QPR and is now keen to impress other interested parties in Brazil.
Remy spent last season on loan at Newcastle United and scored 14 goals in 26 Premier League appearances but has admitted he is uncertain over where his future lies.
QPR manager Harry Redknapp has suggested the striker will not be at Loftus Road next season and the 27-year-old has now confirmed he hopes to impress any interested clubs during the tournament in Brazil.
"The World Cup is a shop window for me," Remy told L'Equipe. "Newcastle, to whom I was loaned by QPR, want to buy me. I don't know if I'm going to stay there. I'm at a crossroads, in a key year. It can either all take off or stagnate.
"Since the start of the year, apart from the injuries, it's been good. And when I feel good, I think I can do a lot of damage. I hope [the World Cup] is the start of something big for me."
Remy also revealed he asked to be rested for Newcastle's final match of the season at Liverpool to ensure there was no repeat of him missing Euro 2012 through injury.
"The coach, Alan Pardew, fully understood my point of view. We didn't have anything to play for," Remy added.
"I didn't want to take the risk of getting injured again. What happened to me two years ago really hurt me, physically and mentally. The sky fell in. It was devastating."