Item description:

Here's my saves with Aqua/Terra/Ventus/Final episode (All on Critical Mode): Kingdom Hearts BBS (you can't obtain the following trophies: The Warriors and all story related trophies)

Edit: Adding a save for Collector and Pâtissier, just go to Mysterious Tower and pick the last sticker for Collector and go to Disney Town and talk to Huey for Pâtissier -> Here

Collectibles Trophies:

The Adventurer Terra/Aqua/Ventus: Just open the reports section with each character, go to the sticker album, remove and paste any sticker.

Profiler: You can obtain this trophy when you finish the game with Terra.

Savage Slayer : Go to any of the Unversed missions and break the record.

Miscellaneous Trophies

Command Board Conqueror: Beat any map.

Justice & Dark: Activate D-link with Pete (may take a few times)

Fantasista: Win any Fruitshot matches

B-boy, Muscle Head and Majorette: Activate Break time with all three characters.

D.J: Just activate Rhythm Mixer once with Ventus (or maybe a few times if it's not working)

Perfect Shot: Use shotlock once.

Maestro: Clear Destiny Island on master with Terra (easiest score to beat).

Rapid Racer: Pick any race and win it (first race, one lap/opponent is easier)

Mirage Arena Trophies

The following 4 trophies will unlock at the same time if you complete any of the battles.

Keepers of the Arena & Villain's Vendetta: Just beat these two arena missions with Ventus, just spam shotlock and dodging (invincible while dodging).

Pawn of the Arena
Knight of the Arena
Queen of the Arena
King of the Arena

Darkness's Will & Light's Will: Use Ventus and just dodge roll all the time (invincible while dodging) and spam the Shotlocks when you can.

A Mere Shell: Use Aqua, spam seeker mine and dodge (invincible while dodging).

Time's Teller: Use Ventus Or Aqua (for the dodging ability), with 4 Thunder Surge and 4 Curaga. It should do the trick.