Nope. Some of the missions are prerequisites for mission 55. I found this guide to be ultra helpful in locating all the missions and a bit of fight techs.---()--()--- wroteI already got the chocobo.elchebib wroteGet the growth egg as early as possible. When Vanille learns the Death spell, go to Ochu (the plant with the tentacles) in the special missions (you need a chocobo to get there) and put on the defender classes and have Vanille spam death until it connects. You'll then get the growth egg.---()--()--- wroteFFXIII ... finally got to the "world map" part. Pretty disappointing, as this "world" map is a huge grindfest.
Thus far, I completed 15 out of the 64 optional missions.
If I don't get bored with the grinding / monotonous missions, I plan on getting a growth egg.
And trust me, it'll be much easier to level up your characters since some of the missions need your characters at max levels (even with that, you need some tech to defeat them)......
The only thing I enjoyed about the game is the battle system and optional missions. My gripe with the game is the stupid aweful story, lame characters and the stuff they left out from previous FFs (more optional missions, spells, real open world, etc.....)
Growth Egg's mission is number 55. All all previous missions pre-requisites ?
http://www.gamesradar.com/f/final-fantasy-xiii-cieth-stone-missions-guide/a-2010031011391394090