Volteel also makes a cameo in Mega Man Zero 4 as one of Dr. Weil's first form attacks, where an image of him appears and electrifies the floor with his Eletric Cage attack.
Volteel attacks by releasing electric spheres from his tail, while hiding in holes. He will sometimes exit the holes to charge the entire room with electricity/attack with his tail and will also stretch out his two tails to attack. If the player has rank A or S, Volteel will use V Laser, in which he shoots two electric spheres from his tail. Defeating him gives Zero the "Shadow Dash" Foot Chip and, if at A or S rank, the V-Shot EX Skill.
The EX Skill Blizzard Arrow is extremely useful against him (if the player has obtained it) as it can strike him multiple times, making short work of him.
- Invisible Dash - Volteel Biblio will swim into a hole twice. He cannot take damage during his swim.
- Spark Chaser - Volteel will pop his head and tail out of random holes in the room and summon a slow-moving orb to move towards Zero.
- Wire Shot - Volteel will stretch and swing on his tails at Zero.
- Electric Cage - Volteel will plug both his tails into the ground, flooding the wall, ceiling and floor with electricity.
- EX Skill: V Laser - Volteel Biblo repeatedly sends out two electric beams from his tails, angled like a V.
|Mega Man X • Copy X (substitute) • Sage Harpuia (interim) • Dr. Weil (usurper)|
|Sage Harpuia • Hidden Phantom • Fairy Leviathan • Fighting Fefnir|
|Eight Gentle Judges|
| Blazin' Flizard • Childre Inarabitta • Hellbat Schilt • Deathtanz Mantisk|
Cubit Foxtar • Glacier le Cactank • Volteel Biblio • Tretista Kelverian
|Rekku Gundan||Aztec Falcon • Herculious Anchus • Kuwagust Anchus • Panter Flauclaws|
|Jin'en Gundan||Anubis Necromancess|
|Meikai Gundan||Blizzack Staggroff • Poler Kamrous • Maha Ganeshariff|
|Zan'ei Gundan||Hanumachine • Hyleg Ourobockle • Phoenix Magnion • Burble Hekelot • Rainbow Devil • Tech Kraken|
|Mechaniloid Units|| Golem • Guard Orotic • Hittite Hottaid • Asura Basura |
Mega Scorpia • Carnage Force 0 • Randam Bandam
|Foot Soldiers||Pantheon (List) • Variant|
|Craft • Omega|
|Einherjar Eight Warriors|| Popla Cocapetri • Mino Magnus • Tech Kraken • Sol Titanion |
Noble Mandrago • Pegasolta Eclair • Fenri Lunaedge • Heat Genblem
|Mega Man Zero series|
| Zero • Ciel • Mega Man X • Resistance • Dr. Weil • Omega • Elpizo • Dark Elf • Caravan • Neige • Craft |
Copy X • Sage Harpuia • Fighting Fefnir • Fairy Leviathan • Hidden Phantom • Eight Gentle Judges • Einherjar Eight Warriors
|Mega Man Zero • 2 • 3 • 4 • Collection • Legacy Collection|
|Mega Man Zero • 2 • 3 • 4|
| Zero's weaponry • Zero Knuckle • Chips • Item Box • Cyber-elf (List) |
Armed Phenomenon • Golem • Locations (Neo Arcadia • Resistance Base • Area Zero • Ragnarok) • Pantheon (List) • Variant
Mega Man Zero Official Complete Works • RTRZ-Telos Drama Track Translations • Remastered Tracks Rockman Zero
Rockman Zero (manga) • Zero 3 Database • Zero 4 Database • Vile's Incident: Eden dome, its sin and rebirth