To tune parts (only applicable with head, core, arm, leg, booster, generator and radiator parts), press Square while in the "Assembly" screen.Burst Missile
When you convert your saved game data from Armored Core: Nexus into Armored Core: Nine Breaker, the Burst Missiles disappear. However, if you start a new game in Nine Breaker, the Burst Missiles remain in the garage.Instant training mission completion
In Training mode there is a exercise called "Attack Hit: Single"; the glitch is in level 3. In the beginning of the round, fly up with the enemy AC and keep him in your sights. After about eight seconds, both yours and the enemy's AC will stop moving and fall to the ground. The operator will speak in Japanese, then a message will say that you have completed the mission. Your results will be a "Gold" rank in first place.Training mode secret parts
Successfully complete one of the following tasks in Training mode to unlock the corresponding part:
- AWH12PL-ETTIN (L Arm): Get 15 Gold ranks
- CR-WB03LGL2 (Back Unit): Get 30 Gold ranks
- WH09H-WRAITH (R Arm): Get 45 Gold ranks
- CR-WH01SP (R Arm): Get 60 Gold ranks
- WH11PU-PERYTON (L Arm): Get 75 Gold ranks
- WH08RS-FENRIR (R Arm): Get 90 Gold ranks
- WB33PL-SKYLLA2 (Back Unit): Get 105 Gold ranks
- CR-WH05BP (L Arm): Get 120 Gold ranks
- AWH12PL-ETTIN (R Arm): Get 135 Gold ranks
- YH12-MAYFLY (Head): Get 150 Gold ranks
- CR-WB03CGH (Back Unit): Complete the Attack category
- WH10M-SILKY (L Arm): Complete the Defense category
- WH11PU-PERYTON (R Arm): Complete the Move category
- WB32L-CERBERUS (Back Unit): Complete the Technic category
- CR-WH01HP (L Arm): Complete the Special category
- CR-WH05BP (R Arm): Complete the Overall category
- CR-WH05RLA (R Arm): Complete 45 training missions
- SYAKATSURA (Back Unit): Complete 105 Training missions
Successfully complete one of the following tasks in Arena mode to unlock the corresponding part:
- CR WH01HP (R Arm): Get rank "B"
- CR WB03MV (Back Unit): Get rank "A"
- CR WH05RLA (L Arm): Get rank "30"
- WB34M-ECHIDNA2 (Back Unit): Get rank "25"
- WH08RS-FENRIR (L Arm): Get rank "20"
- CR WH01SP (R Arm): Get rank "15"
- WH09H-WRAITH (L Arm): Get rank "10"
- WH10M-SILKY (R Arm): Get rank "5"
- CR H05XS-EYE3 (Head): Get rank "1"
Import a saved game file from Armored Core: Nexus to unlock the following parts. Alternately, successfully complete one of the following tasks in Armored Core: Nine Breaker to unlock the corresponding part:
- CR LH97L: Complete Accuracy mode
- KUJAKU: Complete Power mode
- HOHSHI: Complete Judgment mode
- KARURA: Complete Single mode
- YWH07-DRAGON (R Arm): Complete Melee mode
- WH06PL ORC (L Arm): Complete Evade mode
- JIREN: Complete Durability mode
- CR B83TP: Complete Heat Resisting mode
- CR YH07S2: Complete Single mode
- LN01-SEAL: Complete Melee mode
- CH-H95EE: Complete Horizontal mode
- CR I94DD2: Complete Vertical mode
- I03RN-CORAL: Complete Dexterity mode
- CR WH98GL (R Arm): Complete Aerial mode
- YWL03LB-TAROS: Complete Total Mobility mode
- ANANDA: Complete Lock-On Skill
- BYAKUE: Complete Circling Target
- CR LRJ84M: Complete Spacing
- CR WA91MSM: Complete Swordcraft
- MIROKU: Complete Proper Distance
- YA10-LORIS: Complete Evade Missile
- RAIJIN: Complete Evade SP Missile
- CR WR93RL: Complete No Lock-on
- CR WR81RS2: Complete No Radar
- CR YH85SR: Complete No Lock-on and Radar
- WB28R SIREN: Complete Run and Attack
- MF04-COWRY: Complete Run and Defense
- KANGI: Complete Defense and Attack
- WB31B-PEGASUS: Complete Single
- WH04HL KRSW (R Arm): Complete Melee
- RENGA: Complete 15 Programs
- YWH07-DRAGON (L Arm): Complete 30 Programs
- FUNI: Complete 45 Programs
- LADYB: Complete 60 Programs
- E05MG-ROE2: Complete 75 Programs
- WH03M-FINGER (R Arm): Complete 90 Programs
- YLH11-VIXEN: Complete 105 Programs
- 003-CODON: Complete 120 Programs
- YH08-MANTIS: Complete 135 Programs
- Wh04HL KRSW (L Arm): Complete 150 Programs
- NIOH: Get rank "17"
- YC07-CRONUS: Get rank "13"
- Wh03M-FINGER (L Arm): Get rank "7"
- WL MOONLIGHT: Get rank "3"