The Armored Core: Last Raven Arena is composed of the VR Arena and the EX Arena.
Armored Core: Last Raven has two types of Arenas: VR and EX. The VR Arena is more of the standard Arena concept with one difference: you can lose money if you lose a match. The EX Arena doesn't have this stipulation but the only reward for defeating the Ravens here is unlocking their emblem.
Since the absence of Raven's Ark or any organization to organize the Ravens, the arena is replaced by the VR Arena, VR meaning virtual reality.The VR Arena is available at the start of the game. It is composed 30 AI-controlled ACs. The opponents are fought in designated areas which cannot be changed. Some parts are unlocked as a reward for defeating specific AI ACs.
|Rank||AI Ranker||Armored Core|
|5th||Code: Crimson||Baby's Breath|
|9th||Caricature||Life is Mine|
|11th||Sir Fire||Dirty Slime|
|12th||Big Fat Daddy||Paradiso|
|20th||Mal & Dal||Jackpot|
|21st||No. 2448||Crow Predator|
|23rd||Tank Allure||Killer Beagle|
|27th||Aubrey Vion||Relic II|
|30th||Ska||Trigger Happy 99|
After completing the game, the EX Arena opens up. This allows you to battle the Ravens you killed in missions for their emblems. It is composed of 21 Ravens (26 Ravens in the Portable Version).
|G. Faust||Panzer Messiah|
|Rim Fire||Bullet Life|
|Zuben El Genubi||South Nail|
* only appear in Armored Core: Last Raven Portable and are unlocked individually after completing certain endings.
- Some ACs in the VR Arena are the Cover ACs of previous games.