|Home world:||Planet Earth (Alternate Nebula M78 Timeline)|
|First appearance:||Ultraman Max Episode 3: "Proof of a Brave Man" (2005)|
Subtitle: Ancient Monstrous Bird (古代怪鳥 Kodai Kaichō?)
- Height: 52 m
- Weight: 14,000 t
- Flight speed: Mach 2.5
- Origin: Ancient ruins in Mexico
One night, an ancient creature at the Southern border of Mexico awoke. His name was Reguila, based on an ancient Mayan god, and bursted through the ground around a ruined Mayan temple. DASH was aware of Reguila's presence and used Mother DASH to chase after him. DASH Birds were sent after Reguila, but Kaito's arrogance from an earlier argument got the better of him as he risked his life twice to turn into Ultraman Max to no avail. Reguila's eye darts shot his fighter down and the assault on Reguila had to stop. Reguila appeared the next day in the city of Saipan and would soon arrive in Japan. After a couple missiles from DASH, Reguila fell in an area full of windmills and quickly got up. His hurricane force winds annihilated everything in front of him. Koba and Sean were shot down by Reguila's chest beam and once they crashed the bird-like kaiju walked towards them while they were knocked out. Before Reguila could use his pincer claws, Kaito showed up and shot the creature with two homing rockets from a DASH van. Reguila began to follow Kaito and once his eye darts weren't enough he used hurricane winds that sent the van flying. Kaito managed to turn into Max and clashed with Reguila. Try as he did, Reguila was of little match for Max's power and once Max escaped his chest ropes he used the Maxium Sword to cut Reguila in two. As Reguila tried to fly off, he became electrified and soon exploded.
- Reguila's roars are generic elk bugles, with some snarling from the Jurassic Park Velociraptor thrown in.
- Reguila's design is a tribute to Alien Iyros from Ultraseven.
Powers and Weapons
- Eye Blast: Reguila can emit small blasts of energy from his eyes. These can be fired in rapid succession, but can barely down a plane.
- Pincer Claws: Emerging from the holes on his chest, Reguila can grow two bone-like claws that act like pincers.
- Hurricane Winds: By flapping his wings hard enough, Reguila can create hurricane-like winds.
- Flight: Reguila is able to fly through the air at very high speeds.
- Chest Beam: Reguila can emit two powerful energy beams from his chest that can home into enemies and combine to become more powerful.
- Chest Rope: Reguila can create an energy rope to constrict his foes.
- Burrowing: Reguila can burrow at high speeds.
|Ultraman Max Kaiju & Seijin|
|Grangon | Lagoras | Eleking | Baby Eleking | Reguila | Alien Sran | Pigmon | Red King | Salamadon | Paragler | People of Nebula KJ-K5 (Kesam, Kerus, Kedam) | Bugdalas | Natsunomeryu | Metacisus | Antlar | Halen | Alien Zetton | Zetton | King Joe | IF | Mike, Kuro and Tama | Nina | Eraga | Alien Shamer | Alien Tarla | Gilfas | Cloudos | Gomora | Madeus | Flygler | Alien Metron | Alien Neril | Alien Godley | Unizin | Alien Pitt | Eleking II | Luganoger | Lilika | Geronga | Lagoras Evo | Moetaranga | Tiny Baltan | Dark Baltan | Hophop | Adam | Eve | Red King II | Alien Satun | Keplus | Delos people | Auto Maton | Scout Berserke | Satellite Berserke | Giga Berserke|