Hi everyone - Mimerio here to give you a brief run-down of all digimon in the game, please not that this WILL contain spoilers, so don't read if you don't want to be spoiled. Thanks

Rookie Digimon

Gabumon
Type: Water
Circle Attack - Blue Blaster: Shoots a blue blast of water at the enemy
Triangle Attack - Horn Attack: Uses horn to ram the enemy upwards, does Water damage.
Digivolves into: MetalGarurumon

Agumon
Type: Fire
Circle Attack - Pepper Breath: Shoots a fireball at the enemy
Triangle Attack - Claw Attack: Launches forward slashing with his claws
Digivoles into: WarGreymon

Patamon
Type: Nature
Circle Attack - Boom Bubble: Fires a bubble of air at the enemy
Triangle Attack - Slamming Attack: Rams into enemy and sends them into the air
Digivolves into: Seraphimon

Terriermon
Type: Nature
Circle Attack - Bunny Blast: Shoots a green sphere of energy at the enemy
Triangle Attack - Terrier Tornado: Spins at the enemy, makes yourself airbourne.
Digivolves into: MegaGargomon

Guilmon
Type: Fire
Circle Attack - Pyro Sphere: Shoots fireball at the enemy, similar to Pepper Breath
Triangle Attack - Rock Breaker: Slashes the enemy with fire-clad claws.
Digivolves into: Gallantmon

Renamon
Type: Nature
Circle Attack - Diamond Storm: Sends a flurry of sharp diamonds at the enemy, can change direction.
Triangle Attack: Kohenkyo: Allows you to switch places with the enemy.
Digivolves into: Sakuyamon

Veemon
Type: Fire
Circle Attack - Vee-Headbutt: Charges at enemy, can be done at an angle.
Triangle Attack - Vee-Punch: Scratches and punches enemy at close range.
Digivolves into: Imperialdramon

Wormmon
Type: Nature
Circle Attack - Sticky Web: Fires a small wave of web that slows enemy down
Triangle Attack - Silk Thread: Spins towards enemy to attack.
Digivoles into: Stingmon

Gatomon
Type: Water
Circle Attack - Cat's Eye Hypnotism: fires a pulse / wave of energy at enemy.
Triangle Attack - Lightning Paw: Dashes at enemy and can send them upwards
Digivolves into: Magnadramon


That covers all the Rookie Digimon, I will now be covering all the Mega Digimon, including the unlockable Digimon and the Warp-Digivolutions mentioned above.

Mega Digimon

MetalGarurumon
Type: Water
Circle Attack - Metal Wolf Claw: Fires a blue beam at the enemy
Triangle Attack - Garuru Pummel: Flips back and fires a missle forwards
Special Attack - G-Force Freezer: Sends multiple missles at the enemy, can home in on them too.

WarGreymon
Type: Fire
Circle Attack - Mega Claw: Sends two waves of energy at the enemy
Triangle Attack - Mega Tornado: Spins in a drill like fashon, can be done in any direction
Special Attack - Terra Force: Flies up and throws a huge fireball down at the enemy.

Seraphimon
Type: Nature
Circle Attack - Hallowed Knuckle: Fires a thunderbolt at the enemy
Triangle Attack - Seven Heavens: Fires 7 small fireballs diagnoally up or down at the enemy.
Special Attack - Hallowed Accension - Sends a large amount of lightning down at the enemy, must be in very close range to execute.

MegaGargomon
Type: Nature
Circle Attack - Gargo Missle: Sends 2 homing projectiles towards the enemy
Triangle Attack - Mega Twister: knocks enemy to the ground, then allows you to throw them in a circular motion.
Special Attack - Mega Barrage: Fires a lot of missles short range, causing massive damage.

Gallantmon
Type: Fire
Circle Attack - Royal Joust: Charges towards enemy causing moderate damage
Triangle Attack - Sprial Slicer: Spins upwards causing the enemy to be thrown into the air.
Special Attack - Elysion Blaster: Fires a blast from the shield, very good knockback damage too.

Sakuyamon
Type: Nature
Circle Attack - Dragon Helix: A series of dragons home in on the enemy causing damage
Triangle Attack - Fox Wand: Creates a sphere of spirits to attack the enemy close range
Special Attack - Talisman Sphere: Slams down staff, can trap enemy and sends a blast of green energy after a few seconds.

Imperialdramon
Type: Fire
Circle Attack - Hyper-Crush Laaser: Fires a blast at the enemy
Triangle Attack - Splendor Blade: Kicks then slashes the enemy, decent knockback damage.
Special Attack - Mega Crusher: Beats up the enemy then fires a laser beam at them.

Stingmon
Type: Nature
Circle Attack - Moon Shooter: Fires a green energy ball at the enemy, can be done at angle.
Triangle Attack - Stinging Strike: Drives into the enemy with spear like weapon.
Special Attack - Evil Antenna: Freezes enemy in place with purple waves, then knocks them back.

Magnadramon
Type: Water
Circle Attack - Hydro Tornado: Fires an extending spiral at the enemy.
Triangle Attack - Hermit Fog: Close range attack, difficult to execute
Special Attack - Apocalypse: Sends shower of beams down at the enemy, causing massive damage.


Finally, we have the Unlockable Digimon - I will be explaining how to unlock them as well, so this may or may not spoil / help you. Thanks for reading!

Unlockable Digimon

Reapermon
Type: Fire
Unlock Method: Beat the game once
Circle Attack - Bone Duster: Sends a close range burst of fire up from the ground to sheild self or attack enemies.
Triangle Attack - Grim Slasher: Hits enemies with scythe and dashes forward
Special Attack - Bone Cyclone: Creates massive tornado of fire that sucks in enemies and is almost guaranteed to leave them stunned.

BlackWarGreymon
Type: Fire
Unlock Method: Beat the game twice
Circle Attack - Dragon Crusher: Similar to WarGreymon's attack really
Triangle Attack - Black Tornado: Does the exact same as WarGreymon's Tornado attack
Special Attack - Terra Destroyer: The fireball for this attack is a pink colour and can be done at a closer range.

Omnimon
Type: Mixed
Unlock Method: Complete game with Gabumon and Agumon
Circle Attack - Garuru Cannon: Fires a blue blast from the Garuru Hand.
Triangle Attack - Translucent Sword: Slashes with sword causing slight shockwave
Special Attack - Double Attack: Creates an ice wall with Garuru Hand and fires a blast from the Greymon Hand.

Impmon
Type: Mixed
Unlock Method: Complete game with Terriermon, Renamon and Guilmon
Circle Attack - Badaboom: Sends small amount of fire at the enemy
Triangle Attack - Summon: Sends ice crystals towards the enemy
Digivoles into Beezlemon Blast Mode

Beezlemon Blast Mode
Type: Fire
Unlock Method: Complete game with Impmon
Circle Attack - Darkness Claw: Shoots enemy with his gun
Triangle Attack - Dark Ring: Slashes enemy, can be used as a combo attack
Special Attack - Chaos Flare: Creates earthquake then sends fireball at enemy.

Imperialdramon Paladin Mode
Type: Fire
Unlock Method: Password - ROYBOY
Circle Attack - Hyper Crush Laser: Same as Imperialdramon Fighter Mode
Triangle Attack - Splendor Blade: Same as Imperialdramon
Special Attack - Omega Sword: Beats up the enemy then slashes with a powerful sword strike.



That's all the Digimon in Digimon Rumble Arena, I hope this helps you and hope you enjoy playing the game!

Not a bad guide, but I'd personally go slightly deeper in the attack details. For example, Patamon's Boom Bubble goes upwards shortly after being fired instead of travelling horizontally like other projectiles.

I also see a few errors in attack names. I remember the game offered "character profiles" as loading screens where their attacks could be checked, but I only remember the Rookies having such profiles and your errors are all regarding the Megas. For example, Omnimon's Triangle Attack is actually called Transcendent Sword and not Translucent, and also Beelzemon's attack names are heavily messed up.

Imperialdramon Paladin Mode can be unlocked regularly. I don't remember quite clearly how, been a while since I played this, but the logic says you should unlock it by beating the game with at least Veemon and Wormmon, if that doesn't work then add in Agumon and Gabumon. Just so nobody thinks I'm typing names at random, Veemon and Wormmon perform a DNA Digivolution into Imperialdramon (skipping a couple other steps) and Paladin Mode was created by some sort of fusion with Omnimon, who is a fusion of Agumon's and Gabumon's Mega forms.

You've done an overall good work to be your first guide. There are still things to polish and improve, as happens with all firsts, but it's a very good starting step. 

Hi, thanks for your advice, I admit to have gotten some of the names wrong because they sound slightly different to what they should be saying. So I may have heard a mispronounciation. I have made a few other guides, but I'm happy that this is good from a Staff Member's viewpoint. I will re-play the game some more and check to see what can be improved. Thanks again.