Find tips and details for Full Open Attack in GUNDAM BREAKER 4 in this guide.
Burst Action Full Open Attack
Guide to what parts work with the Burst Action Full Open Attack.
What is Full Open Attack in GUNDAM BREAKER 4?
“Full Open Attack” is a special move (called a Burst Action) that you can use when you have the BODY part of the Full Armor Gundam Thunderbolt Version equipped.


- Full Open Attack: A barrage performed by every equipped projectile weapon. Gatling Guns and Machine Guns will fire together. Equipping the right parts will make it stronger.

Don’t want to read the whole guide? Just focus on these points:
- Look for certain icons on parts—they usually work with Full Open Attack, but not always.
- Heads and Shields don’t work with Full Open Attack.







List of Parts
- No Body column: It’s either the part you’re wearing or replaced by the mastered Burst Action.
- No Head column: None of the heads I tested worked.
- No Shields column: None of the shields I tested worked.
- Deviation Synthesis Parts: This list doesn’t include all of them, only some that dropped in previous missions and I kept.
- Optional Parts: I’m still working on this, but if you use parts with the right icons, there’s a good chance they’ll work.
OP Skill | Left Arm | Right Arm | Legs | Backpack |
---|---|---|---|---|
![]() | Abyss Gundam, Duel Gundam Assault Shroud, GM III, Gundam Zabanya, Stark Jegan, Xi Gundam | Abyss Gundam, GM III, Gundam Perfect Strike Freedom, Gundam Zabanya, Stark Jegan, Xi Gundam | Cherudim Gundam/ GNHW/R, Efreet Custom, Full Armor Gundam Thunderbolt Version, Mobile Jin (3-Tube Guided Missile Launcher), V2 Assault Buster Gundam, Victory 2 Buster Gundam, Xi Gundam, Zaku II J with Triple Missile Pod | 00 Raiser, Beargguy, Chaos Gundam, Full Armor Gundam Thunderbolt Version, GN Archer, Gundam G-Self Perfect Pack, Gundam Harute, Lightning Gundam, ZZ Gundam |
![]() | Astray Gold Frame Amatsu/ Amatsu Mina, Blitz Gundam, Duel Gundam Assault Shroud | Gundam Bael, Gundam Perfect Strike Freedom, Strike Noir | ||
![]() | Captain Gundam, Efreet Custom, Full Armor Gundam Thunderbolt Version, Gustav Karl, Stark Jegan | Captain Gundam, Efreet Custom, Perfect Strike Gundam, Stark Jegan | Pale Rider | Strike Rouge + (I.W.S.P.) |
![]() | Gerbera Tetra | Captain Gundam, Efreet Custom, Perfect Strike Gundam | Captain Gundam, Gundam X, Jesta Cannon | |
![]() | Gundam NT-1, Powered GM Cardigan, Super Fumina | Gundam NT-1, Gundam Perfect Strike Freedom, Powered GM Cardigan, Super Fumina | Powered GM Cardigan (Gatling) | |
![]() | Gyunei’s Jagd Doga, Quess’s Jagd Doga | Gyunei’s Jagd Doga, Quess’s Jagd Doga | GM III, Zaku Tank Green Makaku | Blast Impulse Gundam, Jesta |
![]() | Powered GM Cardigan, Super Fumina |
Tips and Tricks
- Using a Funnel Skill: If you have a funnel skill active, it increases the number of hits Full Open Attack does. This might be a bug, but it works.
Examples:
No Funnel: 20 hits

1 Long Fin Funnel: 40 hits

1 Long Fin Funnel + 1 C Funnel: 60 hits

1 Long Fin Funnel + 1 C Funnel + 1 Rose Bits: 81 hits
