Serendipity is a casino in Final Fantasy 13-2 where you can play mini-games like Chocobo Racing and Slot Machines. If you want to unlock Serendipitous achievement/trophy in FF13-2, you need to earn a total of 10,000 coins from Chocobo Racing or Slot Machines in the Casino (Exchanging Gil for Casino Coins doesn’t count towards this achievement/trophy).
If you want to earn them by playing Chocobo Racing, go for Gold Chocobo that can be found in a treasure chest in A Dying World AF700. Level it up to 45 (Max) and it would be a force to reckon with on the race track. Or you can earn 10,000 coins from Slot Machines but that is highly random and subjected to your LUCK.
It is recommended that you go for Slot Machines because either way you will need Lucky Coin fragment from 777 Jackpots on Slot Machines; it’s a requirement for 160 Fragments. Slot Machines are pretty much effortless to play.
Use a rubber band to hold down and leave it overnight. In the morning, if you have won 10,000 coins and Lucky Coin fragment, well and good. If not, load a previous save and start over. Finally, rewards from Slot Machines are higher than Chocobo Racing so it is well-worth the risk.
Remember, you need to win 10,000 Coins not earn. Your final coins count should be 10,000 coins more than your starting number e.g. You start with 5,000 coins and end by 15,000 coins.
How To Play On Slot Machines
Talk to NPC next to Slot Machine and she will tell you that slot machine actually has its mood. Good mood means higher chance to get the jackpot. When NPC tells you she is not in good mood, exit the building and re-enter. When NPC says something nice about the weather (mood), give it a go!
Now, use a rubber band to hold LB button to keep the machine running. This way you will eventually get the jackpot (777), which will prompt the machine to enter a ‘Break’ mode and then in ‘Overbreak’ mode. Overbreak mode is your window of opportunity because you have 10 times more chance of getting a jackpot.
Wait for Jackpot rounds in Overbreak mode, each win will give you 5,000 coins. Keep wining til you have recovered what you lost and WON 10,000 coins on top of that. Keep trying until you do that.
Once you have WON 10,000 coins, exit the slot machine and achievement will pop-up. Remember, you may have to win 10,000 coins in one go or achievement will not pop-up.
Don’t forget to share your own tips with us on how to play these mini-games in Final Fantasy 13-2.