Bio Strong
Code Number(S) ZZ1X
Related To Mech. Bio Strong
Galst Vic
Appears In Darius II
Based On Fetus

Bio Strong is one of the final bosses from Darius II. Unlike other bosses in the series, Bio Strong takes on the form of a fetus.

Darius Odyssey Guidebook Bio Edit

  • Name: Bio Strong
  • Motif: Fetus
  • Type: Prototype Biological weapon
  • Size: 263.6 feet
  • Zone: V (Jupiter Gas Cloud)
  • Weapon: Released cell bullets. Etc.

A biological weapon that the allied forces were developing. Altough it is taking the shape of a fetus, it is not known what form it will take when it matures. It has the ability to freely stretch its body length.


When the battle begins, various blue cells will materialize and float around the screen, moving after the player after a while. These cells can be destroyed, but one of those will instead just flash orange and let out a baby-like scream when attacked, meaning this is the real Bio Strong. He will also move after the player, growing into his true size when next to the player and shrinking back after a while. His only other attack is to create five cell spreads, whith those cells being indestructible.


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