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The Big Core Duo is the first and fourth boss of Gradius Rebirth. It is a modified Big Core.

Details

Same old attacks, but this core transforms into a six-firing laser havoc. 

Attacks Patterns

BigCoreDuo1

At first, the boss will be a normal Big Core. However, after defeat, it will change into a different form. This form will first attack by firing a spread of six lasers at you a total of four times, before firing a pair of powerful lasers. It will then repeat the process.

Trivia

In the updated version of the game, the music will change to an arrangement of the Nemesis 3 boss theme for the second form.

See also

Gradius ReBirth
Characters James Burton (Vic Viper) • GaudieVenom
Stages Stage 1Stage 2Stage 3Stage 4Stage 5
Bosses VolcanoIron MaidenBig Core DuoZub RushCrawler XMoai OrbRe-BoneEnigmaElectronic Cage MK2Xaerous Brain
Core Warships
Big Cores Big Core MK IBig Core Rev. 1.2Big Core MK IIBig Core MK II KaiBig Core MK IIIBig Core MK IV
Big Core variants BeaconBlaster Cannon CoreBubble CoreCircle CoreCoreshipCrater CoreCrystal CoreDellinger CoreDesert CoreHeaven's GateJuggler CoreLizard CoreNeo Big CorePerla MeraldaRexion CoreRolling CoreShining CoreSuper Big CoreTerra CoreVanishing CoreViva CoreGenocide CoreOdin Core
Core-style bosses Abaddon WarshipBubble EyeCovered CoreCovered Core MK IIDead EndKrakenMayhem WarshipMetal SlaveMisfit WarshipQueensrÿcheRiot WarshipPlate Core
Pseudo-Cores DeathDeath MK II (DeathDouble) • Death MK IIIBeta CoreNobilTriple CoreCrash Bam
Tetran variants Tetran (Zylom) • Covered TetranCrystal Core D-X02Laser TetranTenny Rop