Armored Core 6 introduces a thrilling Arena mode that pits players against formidable enemy ACs (Armored Cores). This comprehensive guide outlines the unlock prerequisites and valuable rewards associated with each Arena opponent.
Unlocking these adversaries is intricately linked to your progression through the game’s narrative. The initial Arena, featuring 29 opponents, gradually becomes accessible during your first playthrough. In the subsequent playthrough, New Game+, you’ll unlock the second Arena comprising 12 opponents. The final trio of opponents, however, is exclusive to New Game++, reserved for your third playthrough. The last of these adversaries is unveiled during New Game++ > Chapter 4 > Mission 29-B: Underground Exploration.
Emerging victorious against all Arena Opponents isn’t just a feat of skill—it unlocks the coveted “Testing Complete” & “Master of Arena” trophy/achievement.
These combatants become available as you advance in the storyline and defeating all Arena Opponents will award you with the “Testing Complete” & “Master of Arena” trophy.
Records Arena (1st Playthrough)
29/F “Invincible” Rummy (unlocked after Mission 09: Retrieve Combat Logs)
2 OST Chips, 35,000 COAM
AC Data: MAD STOMP – “Invincible” Rummy
Emblem (Foot)
28/F Index Dunham (unlocked after Mission 09: Retrieve Combat Logs)
2 OST Chips, 37,000 COAM
AC Data: BURN PICKAXE – Index Dunham
Emblem (Burning Pickaxe)
27/F G6 Red (unlocked after Mission 09: Retrieve Combat Logs)
2 OST Chips, 40,000 COAM
AC Data: HERMIT – G6 Red
Emblem (Hermit Crab)
26/E Nosaac (unlocked after Mission 11: Attack the Watchpoint)
2 OST Chips, 43,000 COAM
AC Data: BITTER PROMISE – Nosaac
Emblem (Ninja)
25/E V.VI Maeterlinck (unlocked after Mission 11: Attack the Watchpoint)
2 OST Chips, 45,000 COAM
AC Data: INFECTION – V.VI Maeterlinck
Emblem (Mosquito)
24/E Little Ziyi (unlocked after Mission 11: Attack the Watchpoint)
2 OST Chips, 47,000 COAM
AC Data: YUE YU – Little Ziyi
Emblem (Waves)
23/E V.VII Swinburne (unlocked after Mission 11: Attack the Watchpoint)
2 OST Chips, 50,000 COAM
AC Data: GUIDANCE – V.VII Swinburne
Emblem (Head)
22/D G3 Wu Huahai (unlocked after Mission 14: Ocean Crossing)
3 OST Chips, 52,000 COAM
AC Data: LI LONG – Wu Huahai
Emblem (Gold Dragon)
21/D Ring Freddie (unlocked after Mission 14: Ocean Crossing)
3 OST Chips, 54,000 COAM
AC Data: CANDLE RING – Ring Freddie
Emblem (Purple Candle)
20/D V.V Hawkins (unlocked after Mission 14: Ocean Crossing)
3 OST Chips, 56,000 COAM
AC Data: RECONFIG – V.V Hawkins
Emblem (Mech)
19/D G5 Iguazu (unlocked after Mission 14: Ocean Crossing)
3 OST Chips, 58,000 COAM
AC Data: HEAD BRINGER – G5 Iguazu
Emblem (Bug)
18/D Rokumonsen (unlocked after Mission 14: Ocean Crossing)
3 OST Chips, 60,000 COAM
AC Data: SHINOBI – Rokumonsen
Emblem (Painted Die)
17/C G4 Volta (unlocked after Mission 16/17/18: Tunnel Sabotage)
3 OST Chips, 62,000 COAM
AC Data: CANNON HEAD – G4 Volta
Emblem (Red Cannon)
16/C V.VIII Pater (unlocked after Mission 16/17/18: Tunnel Sabotage)
3 OST Chips, 64,000 COAM
AC Data: DUAL NATURE – V.VIII Pater
Emblem (Baby Emblem)
15/C Sulla (unlocked after Mission 16/17/18: Tunnel Sabotage)
3 OST Chips, 66,000 COAM
AC Data: ENTANGLE – Sulla
Emblem (Snakes)
14/C “Chatty” Stick (unlocked after Mission 16/17/18: Tunnel Sabotage)
3 OST Chips, 68,000 COAM
AC Data: CIRCUS – “Chatty” Stick
Emblem (Glowing Flower)
13/C Middle Flatwell (unlocked after Mission 16/17/18: Tunnel Sabotage)
3 OST Chips, 70,000 COAM
AC Data: TSUBASA – Middle Flatwell
Emblem (Bird)
12/B V.III O’Keeffe (unlocked after Mission Mission 23: Attack the Old Spaceport)
4 OST Chips, 72,000 COAM
AC Data: BARREN FLOWER – V.III O’Keeffe
Emblem (Eye)
11/B “Cinder” Carla (unlocked after Mission Mission 23: Attack the Old Spaceport)
4 OST Chips, 74,000 COAM
AC Data: FULL COURSE – “Cinder” Carla
Emblem (Spider)
10/B Coldcall (unlocked after Mission Mission 23: Attack the Old Spaceport)
4 OST Chips, 76,000 COAM
AC Data: DEADSLED – Coldcall
Emblem (Sled)
09/B V.IV Rusty (unlocked after Mission Mission 23: Attack the Old Spaceport)
4 OST Chips, 78,000 COAM
AC Data: STEEL HAZE – V.IV Rusty
Emblem (Wolf)
08/B “Honest” Brute (unlocked after Mission Mission 23: Attack the Old Spaceport)
4 OST Chips, 80,000 COAM
AC Data: MILK TOOTH – “Honest” Brute
Emblem (Skeleton)
07/A G2 Nile (unlocked after Mission 27: Destroy the Ice Worm)
4 OST Chips, 83,000 COAM
AC Data: DEEP DOWN – G2 Nile
Emblem (Whale)
06/A V.II Snail (unlocked after Mission 27: Destroy the Ice Worm)
4 OST Chips, 83,000 COAM
AC Data: OPEN FAITH – V.II Snail
Emblem (Purple Faces)
05/A Chartreuse (unlocked after Mission 27: Destroy the Ice Worm)
4 OST Chips, 83,000 COAM
AC Data: UMBER OX – Chartreuse
Emblem (Golden Ox)
04/A Thumb Dolmayan (unlocked after Mission 27: Destroy the Ice Worm)
4 OST Chips, 83,000 COAM
AC Data: ASTGHIK – Thumb Dolmayan
Emblem (Flag with Scales)
03/S King (unlocked after Mission 30: Underground Exploration – Depth 3)
6 OST Chips, 95,000 COAM
AC Data: ASTER CROWN – King
Emblem (Star and Crown)
02/S G1 Michigan (unlocked after Mission 30: Underground Exploration – Depth 3)
6 OST Chips, 97,000 COAM
AC Data: LIGER TAIL – G1 Michigan
Emblem (Tiger)
01/S V-I Freud (unlocked after Mission 30: Underground Exploration – Depth 3)
6 OST Chips, 100,000 COAM
AC Data: LOCKSMITH – V.I Freud
Emblem (Fist)
Trophy / Achievement: Testing Complete (Cleared all combat aptitude evaluation programs in the Arena)
Part: Vvc-700LD (Laser Drone – L-Back Unit)
Analysis Arena (2nd & 3rd Playthrough)
A-1 Integration Subject 51-001 K (unlocked in New Game+ after Mission 11: Attack the Watchpoint)
8 OST Chips, 60,000 COAM
AC Data: MIND ALPHA
Emblem (Mind Alpha)
A-2 Analysis Subject 51-011 AL (unlocked in New Game+ after Mission 11: Attack the Watchpoint)
8 OST Chips, 66,000 COAM
AC Data: TRAINER
Emblem (Trainer)
A-3 Integration Subject 51-012 AL (unlocked in New Game+ after Mission 11: Attack the Watchpoint)
8 OST Chips, 72,000 COAM
AC Data: TESTER
Emblem (Tester)
B-1 Integration Subject 51-002K (unlocked in New Game+ after Mission 16/17/18/19: Prevent Corporate Salvage of New Tech)
10 OST Chips, 80,000 COAM
AC Data: MIND BETA
Emblem (Mind Beta)
B-2 Analysis Subject 51-013 BE (unlocked in New Game+ after Mission 16/17/18/19: Prevent Corporate Salvage of New Tech)
10 OST Chips, 86,000 COAM
AC Data: CORPORATION
Emblem (Corporation)
B-3 Analysis Subject 51-014 BE (unlocked in New Game+ after Mission 16/17/18/19: Prevent Corporate Salvage of New Tech)
10 OST Chips, 92,000 COAM
AC Data: RUBICONIAN
Emblem (Rubiconian)
Y-1 Integration Subject 51-003 K (unlocked in New Game+ after Mission 27: Destroy the Ice Worm)
15 OST Chips, 100,000 COAM
AC Data: MIND GAMMA
Emblem (Mind Gamma)
Y-2 Analysis Subject 51-015 GA (unlocked in New Game+ after Mission 27: Destroy the Ice Worm)
15 OST Chips, 100,000 COAM
AC Data: INSTITUTE
Emblem (Institute)
Y-3 Analysis Subject 51-016 GA (unlocked in New Game+ after Mission 27: Destroy the Ice Worm)
15 OST Chips, 100,000 COAM
AC Data: NIGHTFALL
Emblem (Nightfall)
D-1 Classified Subject 51-101 R (unlocked in New Game++ after Mission 14: Ocean Crossing)
0 OST Chips, 135,000 COAM
AC Data: STEEL HAZE ORTUS
Emblem (Steel Haze Ortus) + Emblem (Blue Wolf)
Part (R-Back): EL-PW-01 TRUENO
D-2: Classified Subject 51-201 W (unlocked in New Game++ after Mission 21: Eliminate the Enforcement Squads / Mission 22: Destroy the Special Forces Craft)
0 OST Chips, 150,000 COAM
AC Data: AC IB-C03: HAL826
Emblem (IB-C03: HAL826) + Emblem (Fist Pulling Strings)
Part (R-Arm Unit): Coral Rifle IB-C03W1: WLT 011
D3: Classified Subject: —— – (unlocked in New Game++ after [ALT] Mission 29-B: Underground Exploration)
0 OST Chips, 170,000 COAM
AC Data: ECHO
Emblem (Prototype) + Emblem (Coral Echo)
Part (R-Arm Unit): IA-C01W6: NB-REDSHIFT
Part (L-Arm Unit): IA-C01W7: ML-REDSHIFT
Unlocking All Opponents
While this guide provides an overview of the first Arena’s adversaries, unlocking the full array of opponents demands strategic decision-making. For further help, check out our Easy Builds for Beginners Guide and strategies on how to beat all bosses in Armored Core VI.