Description from Realm 667 (which is back online, including the repository :D)
Summon: FlyingFatso, FFPlasma, FFSlime
Type: Demon, Cybernetic
Sounds: id Software, d3deville (jet engine), blastwave fx (slime)
Sprites: id Software
Sprite Edit: DeVloek
Idea Base: Arachnophyte
The Volacubus is a flying Mancubus, the legs have been replaced with propulsion jets. He is twice as fast and more agressive than his walking counterpart, but has half the mass.
The WAD contains three types with different looks and attacks:
-tan skin, shoots 6 flaming projectiles (same as the Mancubus)
-blue skin, shoots 3 plasma bursts with 6 projectiles each, drops plasma cell when killed (same projectile as of the player's plasma gun)
-green skin, shoots a stream of radioactive slime balls which cause poison damage (projectile is affected by gravity and has a limited range, but the monster won't shoot unless the target is close enough)
All attacks have a random spread, but are not as inaccurate as the original Mancubus attack. The projectiles are shot from the two guns instead of the middle of the monster sprite. The blue and green Volacubus types are different species, so they are immune to their own type's attacks and will infight the other types.