Bubbaleones are Uncommon water element slugs found mainly in rocky streams and freshwater rivers. In its protoform it is similar to a Lavalynx. When they hit 100 mph, it turns into a large bubble-like version of itself. They can also blow bubbles in protoform, as seen in "The Gentleman and the Thief."
A Bubbaleone can be useful against a gattler. The slug's skin is unbreakable and perfect for fighting mimics or explosive slugs. Bubbaleones can also be used as a form of transport, both through the air and underwater.
- Protoform Abilities - Slippery, can create small amounts of foam.
- Bubballo - Huge open mouth sucks everything nearby in to its large, indestructible bubble body.
- Foambaloo - Harmless burst of foam makes everything slippery, tough to stand up or hold gear.
- Soapysoak - Sprays an opponent in the eyes with stinging soap.
- Tentajet - Picks up an opponent in its tentacles and carries them away.
- Bubblebound - Inflates like a pufferfish to rebound incoming slugs.
- NitroBubble: "Bubbaleone"+"Infurnus" - Forms a flaming bubble which functions like a high speed hot nitro bubble.
Bubbaleones are rarely seen in combat, often seen as a weak, largely useless Slug, despite having a solid set of defensive moves. In "The Journey Home" Eli used Suds as a stall tactic, even though Bubbaleones can do a lot more than simply make it hard for an opponent to stay on his feet.
Bubballo and Tentajet both work to remove opponent Slugs from combat, taking them out of the fight and, in the case Slugs or Ghouls using explosive moves, limits the damage. In fact, the inside of a Bubbaleone is remarkably tough, able to take a direct, contained explosion and still maintain its velocimorph.
Bubblebound works to reflect attacks away from the Bubbaleone's Slinger and, with any luck, back at the opponent Slinger. While this move may not have the same area coverage as an Arachnet's Webwall attack, it's still a solid move, often overlooked in the world of SlugTerra.
Finally, Bubbaleones are useful outside of battle for more than just a convenient source of soap. Using their light bodies, a Bubbaleone is capable of carrying a Slinger, even big ones like Kord. This makes for a convenient, highly portable hot air balloon, allowing access to areas that would be difficult to reach. In addition, Bubballo lets a Bubbaleone swallow their own Slinger. Since Slugs can breath underwater, this can turn the Bubbaleone into a semi-submersible or, with enough weight, a temporary submarine.
- The World Beneath Our Feet Part 1 (First appearance)
- The World Beneath Our Feet Part 2
- The Trade
- Club Slug
- The Slug Run
- Shadows and Light
- Mario Bravado
- Endangered Species
- The New Kid Part 2
- The Journey Home
- Deep Water, Dark Water
- The Gentleman and the Thief
- The Hard Part
- King of Sling
- Mission: Improbable
- Keys to the Kingdom
- The Thrill of the Game
- Dark as Night
- Light as Day
- Slugterra: Ghoul from Beyond
- Slugterra: Return of the Elementals
- Slugterra: Eastern Caverns
- Second Chances
- Get Pronto
- Stuff of Legend
- Slug Day
- The Fall of the Eastern Champion
- The Lady and the Sword
- The Return of the Eastern Champion
- Slugterra: Into the Shadows
- In the episode Inheritance, it shows what a Bubbaleone can do with a Flatulorhinkus if they work together.
- Dirt Urchins and Threshers are the slugs that can pop a Bubbaleone and most likely a Dark Urchin and a Thrasher.