Item description:

Complete Terra then Ven without creating save Data for Final Chapter then Complete with Aqua and create Final Chapter, complete Final Chapter and Create Secret Chapter, comlete Secret Chapter and collect all treasures should unlock this group
Critical Competitor
The Adventurer: Terra
The Vessel
The Adventurer: Ventus
The Dormant
The Adventurer: Aqua
The Seeker
Connected Hearts
Complete the final episode.
The Lost Chapter
Complete the secret episode.
Profiler
May have to go into the Trinity Archives in the main menu for Profiler to Pop, may also Pop Collector
Collector (Needs Testing)

Complete The Bottom Four of this list will unlock all of the Arena Trophies
Pawn of the Arena
Knight of the Arena
Queen of the Arena
King of the Arena
Keepers of the Arena
Win the Keepers of the Arena battle in the Mirage Arena.
Villains' Vendetta
Win the Villains' Vendetta battle in the Mirage Arena.
Light's Will
Defeat Armor of Eraqus.
Darkness's Will
Defeat No Heart.

Miscellaneous
A Mere Shell
Defeat the Vanitas Remnant. (Keyblade Graveyard Badlands)
Time's Teller
Defeat the Unknown. (Land of Departure)
Perfect Shot
Use Shotlock with Aqua till it Pops shouldn't take long
Justice & Dark
Use the Pete D-Link with Aqua should make it pop
D.J.
Use the Rhythm Mixer Command Style with Aqua till it Pops theres an Icecream that makes it go faster.
Musclehead
Unleash Break Time with Terra.
B-Boy
Unleash Break Time with Ventus.
Majorette
Unleash Break Time with Aqua.
Pâtissier
Talk to the Red Duckling in Disney Town.
Command Board Conqueror
Win any playable Command Board.
Maestro
Obtain a Fantastic rating for It's a Small World song in Ice Cream Beat Master Mode.
Rapid Racer
Finish first in the first Rumble Racing course.
Fantasista
Beat an opponent in Fruitball.
The Warrior: Terra
Learn all of Terra's Finish Commands.
Quick Learn Finish Commands - Terra Add this code to Save Wizard and apply to Save ending in 0
4000564E 00000001
400E0008 00000000
41005650 0000270F
400E0008 00000000
0000564C 00000043
00005654 00000042
0000565C 00000044
00005664 00000049
0000566C 00000047
00005674 0000004A
0000567C 0000004B
00005684 0000004E
0000568C 0000004F
00005694 00000050
0000569C 00000051
000056A4 00000054
000056AC 00000055
000056B4 0000005A
Then Kill enemies and change finish commands until you learn all of them.
Learning Ramuh's Judgement use the Icecream to apply Thunderbolt Command while equipped with the finish command before it.
Learning Healing Strike Get beat up until it unlocks ( Keep Curaga or Healing item Highlighted and use after learning.)
The Warrior: Ventus
Learn all of Ventus's Finish Commands.
Quick Learn Finish Commands - Ventus Add this code to Save Wizard and apply to Save ending in 1
4000564E 00000001
400E0008 00000000
41005650 0000270F
400E0008 00000000
0000564C 00000043
00005654 00000040
0000565C 00000044
00005664 00000049
0000566C 00000045
00005674 0000004A
0000567C 0000004B
00005684 0000004C
0000568C 0000004F
00005694 00000051
0000569C 00000052
000056A4 00000055
000056AC 00000057
000056B4 00000058
Then Kill enemies and change finish commands until you learn all of them.
Learning Ramuh's Judgement use the Icecream to apply Thunderbolt Command while equipped with the finish command before it.
Learning Healing Strike Get beat up until it unlocks ( Keep Curaga or Healing item Highlighted and use after learning.)
The Warrior: Aqua
Learn all of Aqua's Finish Commands.
Quick Learn Finish Commands - Aqua Add this code to Save Wizard and apply to Save ending in 2
4000564E 00000001
400F0008 00000000
41005650 0000270F
400F0008 00000000
0000564C 00000043
00005654 00000041
0000565C 00000044
00005664 00000048
0000566C 00000049
00005674 00000046
0000567C 0000004A
00005684 0000004B
0000568C 0000004D
00005694 0000004F
0000569C 00000051
000056A4 00000053
000056AC 00000055
000056B4 00000056
000056BC 00000059
Then Kill enemies and change finish commands until you learn all of them.
Learning Ramuh's Judgement use the Icecream to apply Thunderbolt Command while equipped with the finish command before it.
Learning Healing Strike Get beat up until it unlocks ( Keep Curaga or Healing item Highlighted and use after learning.)