|Because this Kaiju is a character in the show instead of the monster-of-the-week, it has been given its own article. If you're looking for the main page, see Alien Mefilas.|
Ultra Zero Fight
He joins forces with Deathlogue, Grocken, Jatar, and Villainous to create the Darkness Five to fight the Ultimate Force Zero. He later battles Ultraman Zero. Sly would have been killed if Kaiser Darkness Belial had not shown up and interrupted their fight. After all of Ultimate Force Zero's members were killed, Zero Darkness invites Sly and the others to conquer the universe. Later, Sly was confused when Zero Darkness stopped moving and started to call him. All of a sudden, yellow particles were released from Zero Darkness. That caused him to take cover. Then Shining Zero used the Shining Star Drive causing a light too bright for him to see. Sly calls out Belial when he was defeated and sealed.
After Belial was revived by Shining Zero's Shining Star Drive, Sly and the others join forces with Belial in their mission of conquering the universe.
During the events prior to Ultraman Geed, Sly participated in the Omega Armageddon alongside Belial, Kei and the other members of the Darkness Five and Belial new's army, named Terror The Belial against the Ultra Warriors in a heated battle which held the fate of the universe at stake. It is unknown what happened to Sly after the Crisis Impact.
Sly appears in the final episode of the series as an image in Belial's memories when Riku sees through his father's mind.
- Height: 2 ~ 60 m
- Weight: 50 ~ 25,000 t
- Origin: Planet Mefilas
- Powers and Weapons
- Capture Sphere: Sly can imprison small beings in a pink energy sphere. The sphere will disappear if Sly is out of a certain radius.
- Mefilas Blade (メフィラスブレード Mefirasu Burēdo): A blade that Sly uses in combat.
- Darkness Ray (ダークネスレイ Dākunesu Rei): Sly can fire a purple ray from the tip of the blade.
- Teleportation: Sly can teleport to whatever location he likes.
Sly (as Armored Mefilas) appears alongside with his comrades: Grocken, Deathlogue, and Villainous in Ultraman Retsuden episode 100. He returns in New Ultraman Retsuden with other Darkness Five members as well, as they become the host of the week.
Ultra Zero Fight
- In Ultra Zero Fight Part 2 episode 11, Sly temporarily replaced Ultraman Zero as the previous episode announcer in 3 episodes.
|Ultraman Zero Kaiju|
|Ultraman Zero The Movie: Super Deciding Fight! The Belial Galactic Empire||Alien Esmeralda Emerana Lourdes | Iaron | Darkgone | Legionoid | Delust | Brigante | Two-Dimensional People | Darklops | Malebrandes | Arch Belial|
|Ultraman Zero Gaiden: Killer the Beatstar||Beatstar | Rei's Gomora | Ace Killer | Inpelaizer | King Joe | Rei's Litra (S) | Alien Bat|
|Ultraman Saga||Hyper Zetton | Alien Bat | Sphere | Gubila | Gomess (S) | Arstron | Legionoid | Chaos Header 0 | Lidorias | Bolgils | Mogrudon | Golmede | Mienin | Eligal|
|Ultra Zero Fight||Bemular | Telesdon | Gudon | Sadola | Alien Bat Gurashie | Red King | Galberos | Gan-Q | Bemstar | Pigmon Moroboshi-kun | Illusion Ultraman Zero | Alien Mefilas Sly | Alien Hipporit Jatar | Alien Temperor Villainous | Alien Groza Grocken | Alien Deathre Deathlogue | Silvergon | Fanegon People | Tyrant | Armored Darkness | Kaiser Darkness|