Snail Blaster

Snail Blaster
Snail Blaster (Known as Den-Den in Japan) is a snail-shaped Badnik (Hence, its name) that appears in Launch Base Zone in Sonic the Hedgehog 3 for the Sega Mega Drive.

Attack pattern
Snail Blaster will stick to a wall and wait for the player to approach. Then, It will shoot fire balls both in 45 degree angle (North-east and South-east) to hit the player. If The player tries to attack it while it isn't shooting fire balls out, it will retreat into its metallic shell, making it impossible to destroy.

Sonic the Comic
In the British Publication of Sonic the Comic, Dr. Robotnik made his Launch Base to re-launch the Death Egg. He put Snail Blaster Badnik's in different locations to hinder Sonic from going any further.

Sonic the Hedgehog OVA
In the Sonic the Hedgehog movie, Sonic, Tails, and Knuckles were hurrying to Robotropolis to stop a machine (Which Dr. Robotnik gave instructions to destroy it) when they were ambushed by Snail Blasters. Knuckles destroyed them while Sonic and Tails kept going.