Sirii (シリウス, Shiriusu) are one of the many enemies in the Hyperdimension Neptunia Series. They're immense hovering robots wielding an axe and a mace. These almost always appear as bosses or dangerous enemies.
Sirii are Risky Bosses, as such, they won't actively pursue the player.
Sirii have 5 skills:
- High Slash (0 SP)
- Circle Slash (250 SP)
- H. Ice Impulse/ (200 SP)
- H. Ice Tornado/ (320 SP)
- Beam & (700 SP)
Above 50% HP
Sirii's main skills are High Slash and High Ice Impulse. Occasionally they can use High Ice Tornado, or in rare cases, Circle Slash or Beam. When Sirii run out of SP they only use High Slash.
Below 50% HP
When Sirii's HP go below 50%, the odds of them using High Ice Tornado or Beam increase a lot.
Sirii don't have direct partners.