kingdom hearts 3d secret ending help please!

[Sir Blades]

im playing the game in standard mode, which means that
1. have at least 7 trophies
2. answer the questions in destiny islands correctly
2. go back to the game and then to the menu and will receive the message of unlocking the secret ending
I did all of this and i still cant unlock the secret ending ive done it with sora and riku multiple times and in different combinations and even watched all the endings infinite times and still nothing.
please please help me :shrug:

 

[Dracule]

After doing that stuff:

To unlock the Secret Message during the credits you have to collect the gold letters during Sora's credit dive until the message 'Secret Message Unlocked' is created. Save the game, then reload it. If you have done it correctly a message will appear on screen confirming that you have unlocked the secret ending in Theater mode.

There ya go.