The Parasite Core appears after DeathDouble makes its way to the back, attaching itself to them and making an already difficult battle even more threatening.
First, the two Deaths will appear onscreen, firing their lasers. If you stay in the middle of the screen, you won't be hit. The Parasite Core will appear after they fire twice. It will attach three tentacles to each Death. The Parasite Core alone can't do much but fire 2-3 energy balls. The Deaths will fire their beams though, trapping you in between them, making it harder to dodge. If you destroy the Parasite Core first, the Deaths will fight you as a pair, and when you destroy their beam hatch, they will begin firing spreads of five missiles, which home in on you on loop 2 or higher. However, if you destroy the Deaths first, the Parasite Core will begin firing sets of six lasers at you. These lasers are VERY accurate, and you more often than not will die if you choose this strategy.
The best strategy is to destroy one Death, destroy Parasite Core, then destroy the other Death. This usually results in an easy win. The Deaths have (technically) one barrier, the beam hatch, which has medium health. The Deaths core's are easily destroyed as they have little health. The Parasite Core has three barriers, each with low health, and a medium health core.
|Ships||Vic Viper • Lord British • Jade Knight • Falchion β|
|Stages||Beyond the White Storm • Requiem for Revengers • Into the Crystal Cage • Ruins of Silence • Organic Fortress • Green Inferno • On the Event Horizon • Formidable Guardians • Fate...|
|Bosses||Blizzard Crawler • Grave • Nobil • Shining Core • Moai Dimension • Mad Skin • Stinger Kid • Hunter Fang • Giga's Rose • Kraken • Laser Tetran • DeathDouble • Parasite Core • Triple Core • Deltatry • Juggler Core • Neo Big Core • Heaven's Gate • Boost Core • Gunner Wall • Heavy Ducker • Sol • O.V.U.M.|
|Big Cores||Big Core MK I • Big Core MK-I Rev.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 • Laser Core • Lizard Core • Neo Big Core • Perla Meralda • Rexion Core • Rolling Core • Shining Core • Super Big Core • Terra Core • Vanishing Core • Genocide Core • Odin Core|
|Core-style bosses||Abaddon Warship • Covered Core • Covered Core MK II • Dead End • Kraken • Mayhem Warship • Metal Slave • Misfit Warship • Queensrÿche • Riot Warship • Plate Core|
|Pseudo-Cores||Death • Death MK II (DeathDouble) • Death MK III • Beta Core • Nobil • Triple Core • Crash Bam|
|Tetran variants||Tetran (Zylom) • Covered Tetran • Crystal Core D-X02 • Laser Tetran • Tenny Rop|
|Parody Cores||Candy Core • Decoration Core • Decoration Core MK II • Viva Core|