Chain of Memories Ahhh! What to do?

I'm stuck in KH CoM. I'm in Neverland, trying to get through a door that needs to be synthisized with a 1 card and the Key to Truth.

Problem is...I don't have a 1 card. And I killed all the Heartless on the ship.

What do I do? =(

 

That happened to me so many times...grrr. Basically there's nothing you can do besides re-synthesising some of the rooms to create more heartless, and fighting until you get the card you need. Normally I get the card I'm missing just before I'm about to give up.

 

Yeah what Roxas13579 said, unfortunately the only way is to keep at it.

 

Ya its true thats pretty much the only way (The door synthesising idea is so repetitive and ******ed it isnt even funny)

 

Woah, woah, woah! Hold on a sec.

Whatever cards I win in battle, I check them (in the Map Cards section of the pause menu) and I don't see the cards I just got.

I probably earned 7 cards just now and I don't see them. It SHOWS that I have 12 cards, but on the top right corner it says I have 32/99. (In the Pause Menu, if you go to Map Cards, in the top right corner it says ##/##)

Huh???

 

All you need to do is re-synthesing past room and use the Teeming Darkness card that will make lots of Heartless appear, it also helps you to level up and get prepare to fight Hook, he isn't the crybaby from KH1, he has some serious combos.