The RattleKiller[1][note 1] is an enemy that appears in the Sonic the Hedgehog series. It is a mass-produced, caterpillar-based Badnik model created by Dr. Eggman, and a variant of the Caterkiller.


RattleKillers are based on caterpillars, as well as the original Caterkiller. It is colored green with yellow spikes on each of its body parts and has cartoonish eyes with black pupils.


Rattlekiller MSZ

Sonic going near a RattleKiller.

In Sonic Mania, and its expansion Sonic Mania Plus, RattleKillers appear exclusively in both Acts of Mirage Saloon Zone. In gameplay, this enemy will climb upward or downward on a pole of some kind before noticing the player. If the player comes nears a RattleKiller, this Badnik will jab its head towards the player, similar to Crawlton. A simple Spin Attack to the head can defeat this Badnik however, releasing the Animal inside.

For the boss of Mirage Saloon Zone Act 1, the Heavy Magician transforms a RattleKiller into the Uber Caterkiller.

Powers and abilities

The RattleKillers are excellent climbers with flexible bodies suited for slithering up and down thin vertical objects and launching long-ranged jabs. They also have quite the bite and spikes covering their bodies.



  1. While not listed in any instruction manuals, the internal files in the PC release of Sonic Mania refers to this enemy as "RattleKiller".


  1. Live Sonic Mania Developer Playthrough. Stealth (20 August 2017). Retrieved on 22 August 2017.

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