Hey!
I don't want to say the previous versions in french are not accurate, but Ill give you my point of view (discussed with a friend as well), i.e. a french teenager who plays games all day! (lol)

Start Game = Jouer
Edit Level = Editer Niveau
Own Game = Propre Jeu
Highscores = Meilleurs Scores
Options = Options
Extras = Extras
Quit = Quitter
Help = Aide
Credits = Remerciements
Order = Commander
Main Menu = Menu Principal
Voil?†! Hope it helps!

PS: wow! so many different languages above!