Big Core MK IV is the final boss of the 1st boss rush in stage 2 of Gradius V. This one has four cores to destroy and builds upon Big Core MK III by having detachable arms that shoot.
Big Core MK IV attacks in several patterns. First, the arms will detach and shoot waving energy beams. Along those beams will be giant plasma balls that will shrink if continuously shot. After those pass, smaller energy balls will travel along the beams and shoot lasers up/down or left/right depending on the configuration. During this phase, homing lasers will also be shot at you. After this phase, the arms will reattach then be released, this time shooting the beams up and down. The main pattern is the same.
In Loop 2 or higher, it will fire a steady laser stream. They restrict the player's movement, making aiming at the top and bottom cores difficult.
|Ships||Vic Viper T-301|
|Stages||Stage 1 • Stage 2 • Stage 3 • Stage 4 • Stage 5 • Stage 6 • Stage 7 • Stage 8|
|Bosses||Big Core Rev. 1.2 • Venom (Lower) • Death MK III • Tetran • Big Core MK II • Big Core MK IV • Ground Spider • Huge Heart • Blaster Cannon Core • Rolling Core • Circle Core • Big Core MK III • Covered Core MK II • Beacon • Keeper's Core • Elephant Gear • Venom (Upper)|
|Big Cores||Big Core MK I • Big Core Rev. 1.2 • Big Core MK II • Big Core MK II Kai • Big Core MK III • Big Core MK IV|
|Big Core variants||Beacon • Blaster Cannon Core • Bubble Core • Circle Core • Coreship • Crater Core • Crystal Core • Dellinger Core • Desert Core • Heaven's Gate • Juggler Core • Lizard Core • Neo Big Core • Perla Meralda • Rexion Core • Rolling Core • Rotating Launcher • Shining Core • Super Big Core • Terra Core • Triple Core (Life Force) • Vanishing Core • Viva Core • Genocide Core|
|Core-style bosses||Abandon Warship • Bubble Eye • Covered Core • Covered Core MK II • Dead End • Kraken • Mayhem Warship • Metal Slave • Misfit Warship • Queensrÿche • Riot Warship • Plate Core|
|Pseudo-Cores||Death (Gau) • Death MK II (DeathDouble) • Death MK III • Beta Core • Nobil • Triple Core|
|Tetran variants||Tetran (Zylom) • Covered Tetran • Crystal Core D-X02 • Laser Tetran • Tenny Rop|