Dodongo Snakes are snake-like enemies with round bellies that slide across the floor with their mouths gaped open and always appear in pairs. They made their sole appearance in Link's Awakening. Much like regular Dodongos, they are defeated by causing them to ingest a number of bombs. This is achieved by dropping or throwing a bomb as close to the Dodongo Snake's mouth as possible, or even placing it directly in from close range. Each Dodongo Snake requires three bombs to be defeated, and will leave behind a Fairy when destroyed.
A pair of Dodongo Snakes are the minibosses of Key Cavern. They also appear later in the game, in Face Shrine and Turtle Rock, where they will return like normal enemies after being defeated.
Unlike most miniboss areas in the game, the Dodongo Snake areas are unique in that Link can exit them at any time. This is presumably so if Link runs out of Bombs, he can leave the room to refill and restart the battle later, in order to prevent the player from getting stuck in an unwinnable battle.
- When a Dodongo Snake eats a bomb in Link's Awakening DX, it will temporarily become slightly greener during the damage animation. It is unknown why this occurs. 
- A glitch occasionally occurs whereby if Link leaves the room after killing one Dodongo Snake, the second will have disappeared upon returning to the room. This is because the game flags that as boss is defeated. 
Dodongo Snakes in the Key Cavern
Dodongo Snakes in the Face Shrine
A Dodongo Snake as it appears from the side