The Big Snail (also known as Escargot[1]) is an enemy in Metal Slug 3.
Information[]
These malevolent mutated mollusks live in humid and dirty places, and can only be found in the lowest paths of Mission 4. They can spit acid and hide in their shells when attacked, which will deflect bullets. When killed while on a ceiling, the shell falls down and becomes an explosive hazard. Sometimes it will hide in its shell and self-destruct.
Using Drill Slug is the best way to dispatch them, as the drill will destroy the snail and their shell as well, occasionally dropping bonus items.
In Metal Slug Defense, the Big Snail can be bought from the unit shop for 40 Medals, and costs about 120 AP per unit. Its normal attack is its acid spit. Its special attack is hiding in its shell, which will make it immune to all forms of attacks for a few seconds but renders it immobile, unlike the Shielded Soldier and Shielded Guerilla units.
In Metal Slug Infinity, the Big Snail is an SSR Slug. Aside from using its acid spit, the Big Snail can roll onto enemy units with a chance of stunning them. When defeated or runs out of "fuel", the Big Snail can perform a frontal attack before melting.
Variants[]
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Big Snail: The original version. In Metal Slug Attack, the ground and dangling snails are their own separate variants. |
Skull Snail: A dark-blue variant which exhales a plume of fire. Appears in Metal Slug Attack. | |
Poison Escargot:[2] A poisonous variant which appears to be lured by bait. A Golden Drill Slug kills the escargot, and its pilot, Fio Germi, immediately uses the escargot's shell as a shield of sorts. It is very durable and can take a lot of punishment before disintegrating. Appears in Metal Slug Attack. | |
Golden Big Snail: A snail who has mutated, with their shells becoming golden as a result. These snails exhale extremely cold air to attack their enemies. Appears in Metal Slug Attack. | |
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Queen Big Snail: A snail in an unexplored subterranean area who grow into a size so enormous it cannot fit into its shell. It uses its tentacles to attack enemies. Appears in Metal Slug Attack. |
Trivia[]

Eri hit by a Big Snail
- When a Big Snail, Maggots or a Giant Caterpillar's acid hits a male character, his flesh dissolves into nothing but bones. If a female character is hit by the acid, her clothes will dissolve first, exposing her naked breasts or buttocks, depending on whether she was hit while standing or jumping. Her body then melts away into green slime as she dies.