Crawltons seem to be successors of the Caterkillers, as they share a similar design. The first Crawltons consisted of eight round segments, including their heads. They were mostly dark blue with a yellow underbelly, and each body segment had a yellow spike on both sides. Their heads had a pair of black eyes, a pointy antenna and screw on each side, and sharp mandibles with a mouth between them. They also a grey plate on each side of their head which connected with their antennae.
In Sonic Lost World, Crawltons have purple armor and their bodies consist of many more segments. They also have cyan eyes instead of black and the grey plates on the sides of their heads are replaced with yellow caps.
Sonic the Hedgehog 2 (16-bit)
The first appearance of this Badnik was in the 16-bit version of Sonic the Hedgehog 2, where it served as an enemy. This time around, this Badnik is referred to as Crawlton (ザキーン,Zakin?). In this game, the player encounters them in Mystic Cave Zone.
In gameplay, the Crawltons hide within the walls and wait until the playable character comes close. When that happens, they attack quickly by extending their heads towards the playable character, causing damage upon touch. However, the Crawltons can only extend their heads a limited distance. Because of their attack method, Crawltons can easily ambush the player. Before they attack however, their body parts can be spotted inside the walls, allowing the player to predict when they will strike. Otherwise, the player can avoid them by just running past the Crawltons before they attack. To defeat a Crawlton, the player must use the Spin Jump on its head after it reveals itself, as its spikes will ensure the player will take damage should they attack anywhere else. Also, upon their destruction, they release an Animal.
Sonic Lost World
In both versions of Sonic Lost World, the Crawltons are featured in Desert Ruins, Tropical Coast and Frozen Factory. During the game, all the Badniks, the Crawltons included, got hijacked by the Deadly Six. In the Wii U/PC version of the game, they serve as normal enemies, and will most of the time attack the player in groups. In gameplay, they burrow across the desert sands with their heads above the surface and when the player gets close to them, they will pop out the sand in a swift motion to damage Sonic. Additionally, the Crawltons have a noticeably longer attack range than in Sonic the Hedgehog 2.
In the Nintendo 3DS version of the game, Crawltons are larger enemies that can take multiple hits before being defeated. These Crawltons must be destroyed in order for the player to progress through a Zone, similar to Sandworms. In battle, they hide in a shadow on the ground from where they will pop out of to attack the player, for then to retract back into and repeat the pattern. To defeat this Crawlton, stun it with a Somersault Kick and then attack the glowing weak spot on it with the Homing Attack three times (or less with a charged-up Focused Homing Attack). Before the last hit, the Crawltons will overheat and start swinging their body swing around.
Powers and abilities
Crawltons hide within the walls. When the player comes near, they poke out of their hiding place for a surprise attack.
In the Sonic the Comic series published by Fleetway Editions, the Crawltons are a part of Dr. Robotnik's Badnik army. Depending on the artist, the Crawltons' design would be altered slightly various times. They were sort of recurring Badnik types early on in the comics, but appeared more scarcely as time went on.