Kingdom Hearts Final Mix
56 Achievements
50-60h
Undefeated
Clear the game without using a continue.
5.2%
How to unlock the Undefeated achievement in Kingdom Hearts Final Mix - Definitive Guide
Don't get it confused; DYING IS OKAY! You just need to load your last save file if you do so save often! I can't even count the number of times I was too lazy to go back to a save point only to die in the next area or whatever and have to redo 45 minutes worth of battles and stuff.
Also there were moments where I accidentally clicked "Continue" and I had to close the game [app] and then restart it but I still popped the Trophy.
If you're successful it will pop AFTER the credits along with whatever difficulty Trophy you'd obtain.
For this trophy you must clear the game without using a continue. Whenever Sora loses all his health you are redirected to a "Continue" screen where Sora floats in the middle of the screen with his heart hovering above of him with it you have 2 options, one to continue and the other to reload your save.
Whenever you select continue you are redirected to the beginning of the area you were previously in, opposed to having to reload your save and start by at the least save point you were at. For this trophy you cannot use this option - you can however use the reload option and reload your save file, doing this will not void you of the trophy and saves you time from having to turn the PS3 on and off everytime you die.
After you have beaten the game without using a continue the trophy will unlock alongside the difficulty trophy of that playthrough.