Maybe my positive review for Square Enix's rhythm-based celebration of Final Fantasy's soundtrack, Theatrhythm Final Fantasy, didn't quite sell you on the game. Maybe you need to check first to ensure your favorite songs from the series are on the cartridge, or will be available via DLC. Here is a list of every song included out of the box, along with the available and incoming downloadable songs, each costing a mere $0.99 on the 3DS eShop.

Songs on cartridge:

Final Fantasy

• “Battle”
• “Chaos Shrine”
• “Ending Theme”
• “Main Theme”
• “Mt. Gulg”
• “Opening Theme”
• “Prelude”

Final Fantasy II

• “Battle Theme 2”
• “Finale”
• “Main Theme”
• “Prelude”
• “The Rebel Army”

Final Fantasy III

• “Battle 2”
• “Elia, the Maiden of Water”
• “Eternal Wind”
• “The Everlasting World”
• “Prelude”

Final Fantasy IV

• “Battle 1”
• “Battle with the Four Fiends”
• “Epilogue”
• “Main Theme of Final Fantasy IV"
• “Prelude”
• “Theme of Love”
• “Within the Giant”

Final Fantasy V

• “Battle at the Big Bridge”
• “Ending Theme“
• “Four Hearts”
• “Home, Sweet Home”
• “Main Theme of Final Fantasy V”
• “Mambo de Chocobo”

Final Fantasy VI

• “Balance is Restored”
• “Battle to the Death”
• “Celes’s Theme”
• “Dancing Mad”
• “The Decisive Battle”
• “Omen”
• “Searching for Fiends”
• “Terra’s Theme”

Final Fantasy VII

• “Aerith’s Theme”
• “Ending Credits”
• “JENOVA”
• “Judgment Day”
• “Let the Battles Begin!”
• “Main Theme of Final Fantasy VII”
• “One-Winged Angel”
• “The Prelude”

Final Fantasy VIII

• “Blue Fields”
• “Ending Theme”
• “The Man with the Machine Gun”
• “Overture”
• “Waltz for the Moon”

Final Fantasy IX

• “Battle 1”
• “Beyond the Door”
• “Melodies of Life – Final Fantasy”
• “Over the Hill”
• “A Place to Call Home”
• “Something to Protect”

Final Fantasy X

• “Fight with Seymour”
• “Mi-hen Highroad”
• “Suteki Da Ne (Isn’t It Wonderful?)”
• "Suteki Da Ne (Isn’t It Wonderful?) Orchestral Version”
• “Zanarkand”

Final Fantasy XI

• "Awakening"
• “FFXI Opening Theme”
• “Ronfaure”
• “Vana’diel March”
• “Vana’diel March #2”

Final Fantasy XII

• “Clash of Swords”
• “Ending Movie”
• “Giza Plains”
• “Theme of the Empire”
• “Theme of Final Fantasy – FFXII Version”

Final Fantasy XIII

• "Blinded By Light”
• “Defiers of Fate”
• “Ending Credits”
• “Final Fantasy XIII – The Promise”
• “Saber’s Edge”
• “The Sunleth Waterscape”

Downloadable Songs:

Final Fantasy

• “Mayoya’s Cave” (TBA)
• “Underwater Temple”  (TBA)

Final Fantasy II

• “Battle Theme 1” (TBA)
• “Dungeon”  (TBA)
• “Magician’s Tower” (TBA)

Final Fantasy III

• “Battle 1” (Available July 19, 2012)
• “Battle to the Death” (TBA)
• “Crystal Cave” (Available July 26, 2012)
• “Crystal Tower” (TBA)

Final Fantasy IV

• “Battle 2” (TBA)
• “The Final Battle” (TBA)

Final Fantasy V

• “Battle 1" (TBA)
• “Decisive Battle"  (TBA)
• “The Final Battle” (TBA)
• “In Search of Light” (TBA)

Final Fantasy VI

• "Battle" (Available July 12, 2012)

Final Fantasy VII

• “Cosmo Canyon” (TBA)
• “Fight On” (Available July 16, 2012)

Final Fantasy VIII

• “The Castle” (TBA)
• “The Extreme” (TBA)
• “Forece Your Way” (TBA)
• “Ride On” (TBA)

Final Fantasy IX

• “Battle 2” (TBA)
• “The Darkness of Eternity” (TBA)
• “The Final Battle” (TBA)
• “Sleepless City Treno” (TBA)

Final Fantasy X

• “Battle Theme” (TBA)
• “Challenge” (TBA)
• “A Contest of Aeons” (Available July 26, 2012)
• “Final Battle” (TBA)
• “A Fleeting Dream” (TBA)
• “Movement in Green” (TBA)

Final Fantasy XI

• “Battle Theme” (Available July 19, 2012)
• “Fighters of the Crystal” (TBA)
• “Gustaberg” (TBA)
• “Ragnarok” (TBA)
• “The Sanctuary of Zi’Tah” (Available July 26, 2012)
• “Sarutabaruta” (Available July 12, 2012)

Final Fantasy XII

• “The Battle for Freedom” (TBA)
• “Boss Battle” (TBA)
• “The Dalmasca Estersand” (TBA)
• “Desperate Fight” (TBA)
• “Esper Battle” (TBA)
• “The Royal City of Rabanastre/City Ward Upper Level” (TBA)

Final Fantasy XIII

• “Archylte Steppe” (Available July 26, 2012)
• “Desperate Struggle” (Available July 12, 2012)
• “Fighting Fate” (TBA)
• “March of the Dreadnoughts” (TBA)

Final Fantasy XIII-2

• “Etro’s Champion” (Available July 19, 2012)

Final Fantasy Type-0

• “We Have Arrived” (TBA)

Final Fantasy Versus XIII

• “Somnus” (Available July 12, 2012)

Note: This list is up to date as of July 19, 2012. Square Enix will publicize more DLC song release dates moving forward.