Kerthunk

See also: Possessed Thunk

A Kerthunk is a One Concern weapon, and a boss. The Concern have produced multiple of these machines, though only one regular Kerthunk is fought during the game. Others can be found in various states of assembly in the Dark Cave of the Darland Ascent.

=Boss Fight: 3 Hearts= This boss fight occurs when Robin and Mina are escaping from the prison/community centre in Settlement 17. Its behavior depends on how many hearts it has left.

3 Hearts

 * Shoots two fireballs from one of its shoulder cannons. Each cannon shoots at a different angle. The cannon that fire depends on the furthest one to the player.
 * A Sasori (scorpion)-like tail juts up from the center, revealing a nut. Sends a fireball to either side. Turning the nut reveals a weak spot that Mina will shoot.
 * Sends out a swarm of 5 Coptrollers.

2 to 1 Heart
The Kerthunk repeatedly grabs the platform and shoves it into the thorny vines on the ceiling. It shoves the platform one last time after it loses its last heart.

0 Hearts

 * Shoots a fireball from one of its shoulder cannons.
 * Summons a Coptroller.

Strategy
Patiently evade the cannon fire and shoot the controllers in phase 1, rapid fire the Stun-Gun in phase 2 and crouch when the platform moves up, and shoot charged shots in phase 3.

= Trivia =
 * In Joakim Sandberg's abandoned game, Ivory Springs, which later became Iconoclasts itself, the boss that would later become Kerthunk was named Mechasynthia.
 * The Mechasynthia fired rotating lasers that you would need to jump or duck to avoid. In its last phase, the Mechasynthia jumps onto the platform with Robin and Mina.
 * In Boss Rush, the Kerthunk is missing its Controller.